Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

40°F

4°C

Humidity 51%
Wind Speed SW 3 mph
Barometer 30.02 in (1016.7 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 11 Dec 11:53 am EST
Extended Forecast for

4 Miles SW Tallassee TN

  • This Afternoon

    This Afternoon: Sunny, with a high near 42. West wind around 5 mph.

    High: 42 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. Calm wind becoming southeast around 5 mph after midnight.

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 55. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 55 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 54. Calm wind.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain showers before 4am, then a chance of snow showers.  Partly cloudy, with a low around 26. Calm wind becoming northwest around 5 mph after midnight.  Chance of precipitation is 30%.

    Low: 26 °F

    Slight Chance
    Showers then
    Chance
    Rain/Snow

  • Sunday

    Sunday: A 30 percent chance of snow showers before 7am.  Mostly sunny, with a high near 32. North wind around 10 mph, with gusts as high as 20 mph.

    High: 32 °F

    Chance Snow
    Showers then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 14.

    Low: 14 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 42. West wind around 5 mph.
Tonight
Mostly cloudy, with a low around 33. Calm wind becoming southeast around 5 mph after midnight.
Friday
Mostly sunny, with a high near 55. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 34. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 54. Calm wind.
Saturday Night
A chance of rain showers before 4am, then a chance of snow showers. Partly cloudy, with a low around 26. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 30%.
Sunday
A 30 percent chance of snow showers before 7am. Mostly sunny, with a high near 32. North wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 14.
Monday
Sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Tallassee TN
 35.51°N 83.99°W (Elev. 1188 ft)
12:21 pm EST Dec 11, 2025
12pm EST Dec 11, 2025-6pm EST Dec 17, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database