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Last Map Update: Wed, Oct 9, 2024 at 12:29:02 pm CDT

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Weather Forecasts, Road Conditions, and Weather Radar for I-81

Current & 7-day weather forecast, road conditions, and weather radar for all of US interstate I-81. All times shown in your local timezone

Weather Radar for I-81

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... including targeted forecasts at the time of your arrival to each point!

Road Trip and Weather Conditions on I-81

Interstate I-81 is a major north-south interstate highway that runs through the eastern United States. It stretches 855 miles from Dandridge, Tennessee, to the Canadian border at the Thousand Islands Bridge.

The road conditions on I-81 vary depending on where you are. Generally, the highway is well maintained and in good condition. The highway boasts a wide, straight road with three lanes in each direction. The speed limit is generally 70 miles per hour, though some states have lower speed limits on certain sections.

In addition to regular maintenance, I-81 is often repaved and resurfaced in order to keep it in good condition. In recent years, I-81 has also seen upgrades in terms of safety features. Rumble strips have been added on the shoulders, along with wide, paved shoulders, and median barriers.

Despite its generally good condition, I-81 is known for its high traffic volume, especially during rush hours. As such, there are often heavy traffic delays, especially in the more congested parts of the interstate. In some places, congestion can also lead to slowdowns due to accidents or road construction.

Overall, I-81 is a safe and well maintained highway. It can be affected by heavy traffic and occasional construction.

Weather on I-81

The weather along I-81 is as varied as the terrain. In the south, temperatures range from mild to hot, while in the north they range from chilly to cold. Snow is common in the winter months, especially in the northern states. The spring brings rain and occasional thunderstorms, while summer is mostly sunny and hot. Fall brings beautiful foliage and cool temperatures. Rain and snow are common throughout the year, so travelers should be prepared for changing weather conditions.

Weather in New York on I-81

New York is home to a variety of climates, and the weather on Interstate I-81 can vary depending on the time of year and the region. In the summer, temperatures can soar into the 90s and higher, with high humidity levels. Heat advisories and thunderstorms can also occur. In the winter, temperatures can dip below freezing, with snow and ice common on the roadways. Windy conditions can also be present, with gusts of up to 40 mph. Spring and fall tend to have milder weather, but rain showers are common. In any season, the weather can change quickly, so it is important to be prepared for any conditions.

Weather in Pennsylvania on I-81

Weather in Pennsylvania on Interstate I-81 is normally quite mild throughout the year. In the summer months, temperatures generally reach the mid-80s. During the winter, temperatures usually stay around the mid-30s. Rainfall is fairly evenly distributed throughout the year, with the peak occurring in late summer and early fall. Snowfall is also common in the winter. The heaviest snowfall usually occurs in the northern and western parts of the state.

The most hazardous weather for traveling on I-81 can be strong winds and fog. High winds can make driving difficult and reduce visibility. It is important to be extra cautious when driving in windy conditions. Fog can also greatly reduce visibility, creating dangerous driving conditions. During periods of fog, it is best to reduce speed, use low-beam headlights, and be aware of other drivers.

Weather in Maryland on I-81

Maryland weather on Interstate I-81 can vary depending on the season and location. In the summer, temperatures are usually warm and humid, with highs in the 80s and 90s. Thunderstorms and heavy rain are common, especially in the afternoon and evening.

In the winter, temperatures can dip into the single digits, with snow and icy conditions possible. Drivers should prepare for icy roads and limited visibility during these months.

Spring and fall are milder, with temperatures ranging from the mid-50s to mid-70s. Rain and thunderstorms are still common during these months.

Weather in Virginia on I-81

Virginia is known for its temperate climate and its diverse weather patterns. Interstate I-81 runs along the western side of the state, and experiences a range of weather conditions throughout the year.

In the summer months, temperatures along I-81 can reach up to 90°F with high humidity. Thunderstorms are common in the summer months, bringing heavy rain, hail and strong winds.

In the winter months, temperatures can drop below freezing and snowfall is common. I-81 is well-equipped to handle snow and ice, but drivers must use caution as roads can become icy and dangerous.

Spring and fall are milder. They bring more moderate temperatures, with occasional showers and thunderstorms.

Weather in Tennessee on I-81

Tennessee is known for its hot and humid summers and mild winters. Interstate I-81, which runs through the state, experiences all four seasons. Temperatures range from an average high of 91°F in July to an average low of 27°F in January. The weather along Interstate I-81 in Tennessee can be unpredictable and extreme.

In the summer, the I-81 corridor can experience hot temperatures. Occasional strong thunderstorms can bring heavy rain, lightning, and high winds.

In the fall, temperatures are more mild, but the winds can become gusty, and the area will often experience severe storms with a chance of tornadoes.

In the winter, the I-81 corridor experiences cold temperatures and snowfall, though these can be sporadic. The area often experiences ice storms as well, which can make driving along the interstate dangerous.

In the spring, temperatures warm up. The area experiences its fair share of severe thunderstorms, with a chance of hail, tornadoes, and flooding. This is also when the most severe weather tends to occur, so it is important to be prepared.

Major Junctions of I-81

In New York:

• I-81 South begins at the Thousand Islands Bridge at the Canada–US border.
• I-81 has a major junction at I-781 in Watertown, New York.
• I-81 has a major junction at I-90 in North Syracuse, New York.
• I-81 has major junctions at I-481 and I-690 in Syracuse, New York.
• I-81 has a major junction at I-86 and I-88 in Binghamton, New York.

In Pennsylvania:

• I-81 has a major junction at I-476 in Clarks Summit, Pennsylvania.
• I-81 has major junctions at I-84 and I-380 in Dunmore, Pennsylvania, near Scranton.
• I-81 has a major junction at I-476 in Dupont, Pennsylvania.
• I-81 has a major junction at I-80 near Hazleton, Pennsylvania.
• I-81 has a major junction at I-78 in Jonestown, Pennsylvania.
• I-81 has a major junction at I-83 in Harrisburg, Pennsylvania.

In Maryland:

• I-81 has a major junction at I-70 in Hagerstown, Maryland.

In Virginia:

• I-81 has a major junction at I-66 in Hagerstown, Virginia.
• I-81 has a major junction at I-64 in Lexington, Virginia.
• I-81 has major junctions at I-73 and I-581 in Roanoke, Virginia.
• I-81 has a major junction at I-77 in Wytheville, Virginia.
• I-81 has a major junction at I-381 in Bristol, Virginia.

In Tennessee:

• I-81 has a major junction at I-26 in Tri-Cities, Tennessee.
• I-81 has a major junction at I-40 in Dandridge, Tennessee, near Knoxville.

This map shows the current & 7-day weather forecast, road conditions, and weather radar for all of US interstate I-81.

Tennessee Weather Warnings

• All Warnings

Hawkins County Warnings, Watches and Advisories

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Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Hawkins County. Use the Radar Maps link provided to understand the trajectory of a storm.

Disclaimer and Conditions of Use

This information is provided AS IS and strictly for recreational, educational, and informational purposes only; we disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use, or inability to use the data. The information may be inaccurate or incomplete based on how well the corresponding weather station successfully or unsuccessfully reported or recorded it with the instruments which measured the weather at the time; including gaps between hours or even days. Specifically, LocalConditions.com and this data, as presented, may not and should not be used as a reference for any reason relating to legal proceedings, insurance claims, recovery, loss prevention, making predictions, or critical decisions. Lastly, the weather station may be miles away from the actual area of interest. This data may not be leeched or republished.

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Hurricane Milton tracker: Meteorologists warn of 'extremely life-threatening' storm

"preparations to protect life and property, including being ready for long-duration power outage, should be rushed to completion," the national hurricane center warned..

As Hurricane Milton rages toward Florida , officials continue to sound the alarm on the dire threat the powerful storm poses to those who remain in its path.

The storm, which is on track to hit the Florida peninsula Wednesday night or early Thursday, presents an "extremely life-threatening situation" to those on the state's western coast, the National Hurricane Center has repeatedly warned . Milton, a Category 4 storm with sustained winds of 145 mph as of Wednesday morning, briefly regained Category 5 strength Tuesday .

While the storm is expected to weaken before it makes landfall, experts like NHC specialist John Cangialosi warn that “Milton has the potential to be one of the most destructive hurricanes on record for west-central Florida." Milton's center is predicted to make landfall somewhere along the coast between Tarpon Springs and Cape Coral, according to the hurricane center's official forecast.

Hurricane Milton live updates: Storm surging toward Tampa; landfall likely tonight

Gov. Ron DeSantis said Milton will likely make landfall as a Category 3 storm and warned Tuesday that "time is running out" for Floridians to evacuate before the region is devastated by damaging winds and torrential rainfall.

Live updates: Hurricane Milton strengthens to Category 5 as it approaches Florida

National Hurricane Center warns of 'life-threatening' storm's approach

In a Wednesday morning update from the National Hurricane Center, meteorologists forecasted heavy rainfall totaling 6 to 12 inches across central to northern portions of the Florida Peninsula through Thursday, with localized totals up to 18 inches.

"This rainfall brings the risk of catastrophic and life-threatening flash and urban flooding, along with moderate to major river flooding," the center said.

Hurricane-force winds are also expected along portions of the state's west coast, where a hurricane warning is in effect, and could even extend well inland and outside the forecast cone. Hurricane warning maps show Florida blanketed in red and orange alerts.

Hurricanes, tornadoes, snow and heat: Sign up for USA TODAY's Climate Point newsletter for expert weather analysis.

"Preparations to protect life and property, including being ready for long-duration power outage, should be rushed to completion," the center warned. "Milton is expected to remain an extremely dangerous major hurricane when it reaches the west-central coast of Florida."

Universal Studios Orlando and Walt Disney World both announced  closures  bracing for landfall, and Tropicana Field where the Tampa Bay Rays play home games has been transformed into a base camp for emergency responders.

On Tuesday, evacuating Florida residents headed to Georgia to escape Milton ahead of landfall. Over a hundred miles north of the state line, many were stuck in central Georgia traffic and packed gas stations.

Hurricanes, tornadoes, snow and heat: Sign up for USA TODAY's Climate Point newsletter for exclusive weather analysis.

Hurricane Milton: Could Milton become a Category 6 hurricane? Is that even possible?

Hurricane Milton tracker

Hurricane milton spaghetti models.

Illustrations include an array of forecast tools and models, and not all are created equal. The hurricane center uses only the top four or five highest-performing models to help make its forecasts.

Video tutorial: 5 must-know tips for getting a text, call through after a big storm

Hurricane Milton livestream

Watch live as Hurricane Milton heads toward Florida.

This story has been updated to add new information.

Contributing: John Bacon , Trevor Hughes , Dinah Voyles Pulver , Christopher Cann , Michael Loria , Thao Nguyen , USA TODAY

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Milton Is Already a Storm for the Record Books. Here’s What May Come Next.

The storm rapidly intensified on Monday.

• Share full article

Still Recovering From Helene, Florida Braces for Milton

Florida residents are preparing for hurricane milton while still cleaning up debris from helene that some worry could get whipped up in strong winds..

I’m still really scared and have nightmares from the last storm. I can’t believe that there’s already another one. We’re just trying to clean up the debris out of the salon. We lost our business. Whatever was not flooded, trying to put everything above four or five feet. So yeah, just getting ready. We’ve got a lot of people that put a lot of stuff on their front yards, and all this stuff is just wind fodder that’s going to just be blowing down the street and hitting who knows what.

By Judson Jones

Judson Jones is a meteorologist and reporter for The Times.

• Oct. 7, 2024

Meteorologists were glued to their computers on Monday morning, watching virtual data as the Air Force Reserve Hurricane Hunter airplane made pass after pass through the eye of Hurricane Milton. Every time it did, it found the storm’s pressure had dropped and the eyewall wind speeds had increased, indicating that it was becoming more intense by the minute.

The hurricane went from a Category 1 storm at midnight to a Category 5 hurricane by noon. And it didn’t stop there.

By 8 p.m. on Monday, the storm’s maximum sustained wind speeds had increased to 180 miles per hour, making Milton one of the strongest Atlantic hurricanes ever. Based on wind speed, it joined a handful of other hurricanes to rival the strongest Atlantic storm ever recorded: a 1980 hurricane named Allen, which had a peak wind speed of 190 m.p.h. before it made landfall along the United States-Mexico border.

Hurricane Milton intensified rapidly

Hurricane Milton’s wind speeds intensified from 60 m.p.h. to 180 m.p.h. in only 36 hours, among the fastest intensifications on record.

Source: National Hurricane Center hurricane database

As a small, compact system, however, Milton was more similar to Hurricane Wilma in 2005, which holds the record for the lowest pressure in a hurricane, another measure of a storm’s intensity.

Its small size, an excess of extremely warm waters in the Gulf of Mexico and calm atmospheric conditions allowed Milton to “explosively” intensify, as hurricane center forecasters noted Monday afternoon.

The standard meteorological definition of “rapid intensification” is 30 knots in 24 hours, or roughly 35 miles per hour daily. Milton increased by more than double this definition on Monday, at a pace similar to that of Wilma and another record storm, Hurricane Felix in 2007.

Hurricane Rita, which reached 180 m.p.h. wind speeds in 2005, created extensive damage when it made landfall in Louisiana, blowing windows out of buildings and pushing a strong surge inland. Rita packed a punch despite weakening to a Category 3 before landfall, something Milton is also likely to do as it nears Florida.

At some point, Milton will stop intensifying.

Most Category 5 storms weaken through an eyewall replacement cycle, when a new wall of thunderstorms begins to form around the smaller inner eyewall, choking out its moisture source and creating a much larger eye of the hurricane.

This occurred overnight, reducing Milton’s wind speeds back to Category 4 strength Tuesday morning. That evolution will likely cause Milton, which was fairly tiny on Monday, to grow physically larger but gradually weaken on Tuesday.

It had to go through an eyewall replacement cycle soon, Phil Klotzbach, a hurricane expert at Colorado State University, said on Monday afternoon.

After an eyewall replacement cycle, a storm usually intensifies again, as Milton may do slightly Tuesday. But the turbulent conditions in the eastern Gulf of Mexico — called wind shear, or the change of airspeed and direction with height — may limit its ability to strengthen and may even weaken the storm further.

This same interaction may again cause the storm to grow, making the system a large and powerful hurricane at landfall in Florida, with life-threatening hazards at the coastline and well inland.

“This is a very serious situation,” forecasters from the National Hurricane Center said Tuesday morning, warning that “Milton has the potential to be one of the most destructive hurricanes on record for west-central Florida.”

When a storm grows larger, the surge can increase as the winds cover a greater distance from its center. The wind helps create the surge, which acts similarly to pushing water with your finger; now, imagine how much water you could push with your arm, instead.

Here’s how changes in the storm’s path could affect residents.

As the storm approaches Florida in the coming days, its most likely path, as of Tuesday morning, is through the central part of the state. The exact path it takes will have huge ramifications over where the storm surge will hit, and where it won’t.

For example, if the storm is tracking toward the northeast and makes landfall just west of Tampa Bay, the surge will push right through up the mouth of the bay. If the storm makes landfall farther south, Tampa Bay might be spared, but anywhere south of the center path of the storm will have a terrible surge.

Another thing to consider is that another area of disturbed weather has been bringing flooding rains to the Florida Peninsula ahead of Milton. As the state just saw with Hurricane Helene, devastating effects can occur when rain falls ahead of a hurricane’s landfall. The amount of rain that falls will depend on how quickly the storm moves across the Peninsula, and where it makes landfall.

Judson Jones is a meteorologist and reporter for The Times who forecasts and covers extreme weather. More about Judson Jones