National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

26°F

-3°C

Humidity 63%
Wind Speed N 8 mph
Barometer 30.19 in (1023.1 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 30 Dec 3:53 am EST
Extended Forecast for

4 Miles ENE Tallassee TN

  • Overnight

    Overnight: A chance of flurries. Mostly cloudy, with a low around 19. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 19 °F

    Chance
    Flurries

  • Tuesday

    Tuesday: A chance of flurries before 9am. Mostly cloudy through mid morning, then gradual clearing, with a high near 34. North wind around 5 mph.

    High: 34 °F

    Chance
    Flurries

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24. West wind around 5 mph becoming calm in the evening.

    Low: 24 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 43. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 43 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30. Southwest wind around 5 mph.

    Low: 30 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Sunny, with a high near 46. West wind around 5 mph.

    High: 46 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35. Southwest wind around 5 mph becoming calm.

    Low: 35 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely. Cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely

Detailed Forecast

Overnight
A chance of flurries. Mostly cloudy, with a low around 19. North wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A chance of flurries before 9am. Mostly cloudy through mid morning, then gradual clearing, with a high near 34. North wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 24. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 43. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 30. Southwest wind around 5 mph.
New Year's Day
Sunny, with a high near 46. West wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 35. Southwest wind around 5 mph becoming calm.
Friday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 55.
Friday Night
Showers likely. Cloudy, with a low around 45. Chance of precipitation is 70%.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 54.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Tallassee TN
 35.57°N 83.87°W (Elev. 2083 ft)
Last Update:
3:51 am EST Dec 30, 2025
Forecast Valid:
4am EST Dec 30, 2025-6pm EST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation