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I-81 Interstate Road Conditions 511
Weather for road I-81
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Interstate 81 (I‑81) runs from Dandridge, Tennessee, to Wellesley Island, New York (at the Canadian border), providing a north–south route through the Appalachians and Eastern Seaboard.It passes through cities such as Knoxville, Bristol, Roanoke, Harrisburg, Scranton, Syracuse, and Watertown.
- Road system: Interstate Highway System
- Year of construction: 1957
- Length: 855 miles
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See live weather forecast for I‑81. Get real‑time I‑81 road and weather conditions displayed directly on the interactive map for your route through Tennessee, Virginia, West Virginia, Maryland, Pennsylvania, and New York.
The map shows live weather conditions along Interstate 81, updated frequently to help drivers plan safer trips. Forecasts are generated for the next 6 hours at key highway points and include temperature and conditions such as clear skies, rain, storms, snow, high wind, hail, and more.
Maryland I-81 weather conditions
- Currently in Maryland, NY, the weather is clear and sunny with a temperature of 14.3°C (57.7°F)
- The humidity level is at 89%, indicating a fairly moist atmosphere
- Winds are light, blowing from the south at 2.0 KPH (1.2 MPH)
- Visibility is good at 16.0 km (9.9 miles)
- The atmospheric pressure is steady at 1021 MB (30.16 inHg)
- There are no active weather alerts at this time.
New York I-81 weather conditions
- The current weather in New York, NY, is characterized by sunny conditions with a temperature of 22.3°C (72°F)
- The humidity level is at 64%, indicating a moderately comfortable atmosphere
- Winds are coming from the southeast at approximately 5 to 10 mph (8 to 16 kph)
- Visibility is clear at about 16 km (9.9 miles)
- The atmospheric pressure is measured at 1021 mb (30.16 inHg)
- Overall, the weather is pleasant for outdoor activities
- There are no active weather alerts at this time.
Pennsylvania I-81 weather conditions
- The current weather in Pennsylvania Furnace, PA, shows a temperature of 17.7°C (63.9°F) with a dew point of 15.9°C (60.6°F) and a relative humidity of 89%
- The pressure is 1020 mb (30.12 inHg)
- Winds are light, blowing from the southeast at 2 to 3 mph (3 to 5 km/h)
- The sky is mostly cloudy, covering approximately 75% of the sky, and visibility is good at 16 km (9.9 miles)
- There are no active weather alerts at this time.
Tennessee I-81 weather conditions
- In Tennessee, IL, the current weather conditions indicate a temperature of 19.6°C (67°F) with a relative humidity of 96%
- The sky is cloudy, covering approximately 100% of the sky
- Winds are light, coming from the southeast at 3 km/h (2 mph)
- The pressure is measured at 1015 mb (30.0 inHg), and visibility is good at 9.5 km (5.9 miles)
- There are active weather alerts in the area, including an Extreme Heat Warning in effect from 11:00 AM to 9:00 PM on July 26, 2026, and an Extreme Heat Watch from 9:00 PM on July 26 to 10:00 PM on July 27, 2026
- Given the current conditions and the upcoming heat alerts, it is advisable to stay hydrated and limit outdoor activities during the heat warning period.
Virginia I-81 weather conditions
- In Virginia, MN, a heat advisory is currently in effect from 11:00 AM to 9:00 PM on July 25, 2026
- The temperature is around 19.4°C (67°F) with a humidity level of 98%, creating a very muggy atmosphere
- Winds are coming from the southwest at approximately 4 km/h (3 mph)
- The sky is mostly cloudy, covering about 80% of the sky
- Visibility is good at 10.7 km (6.6 miles)
- There are no significant weather impacts affecting outdoor activities at this time.
West Virginia I-81 weather conditions
- The current weather in West Virginia, WV shows mostly cloudy conditions with a temperature of 19.6°C (67°F) and a dew point of 17.6°C (63°F), resulting in a humidity level of 88%
- The wind is light, coming from the south at 2 km/h (1 mph), creating a calm atmosphere
- The pressure is measured at 1019 mb (30.09 inHg), and visibility is good at 6.8 km (4.2 miles)
- There are no active weather alerts, and no precipitation is currently occurring.
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