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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

30°F

-1°C

Humidity 51%
Wind Speed Calm
Barometer 30.23 in (1024.6 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 30 Dec 11:53 am EST
Extended Forecast for

4 Miles N Greenback TN

  • This Afternoon

    This Afternoon: Sunny, with a high near 37. West wind around 5 mph.

    High: 37 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 22. West wind around 5 mph becoming southwest in the evening.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 46. Southwest wind 5 to 10 mph.

    High: 46 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28. Southwest wind around 5 mph.

    Low: 28 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Sunny, with a high near 49. West wind around 5 mph.

    High: 49 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 33. South wind around 5 mph becoming calm.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 55. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 55 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely. Cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 37. West wind around 5 mph.
Tonight
Mostly clear, with a low around 22. West wind around 5 mph becoming southwest in the evening.
Wednesday
Sunny, with a high near 46. Southwest wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 28. Southwest wind around 5 mph.
New Year's Day
Sunny, with a high near 49. West wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 33. South wind around 5 mph becoming calm.
Friday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 55. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Showers likely. Cloudy, with a low around 44. Chance of precipitation is 70%.
Saturday
A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 55.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Greenback TN
 35.71°N 84.19°W (Elev. 1010 ft)
Last Update:
12:06 pm EST Dec 30, 2025
Forecast Valid:
12pm 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