Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

30°F

-1°C

Humidity 85%
Wind Speed W 5 mph
Barometer 30.19 in (1022.8 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 9 Dec 2:53 am EST
Extended Forecast for

3 Miles SSE Tallassee TN

  • Overnight

    Overnight: Mostly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 35. Southeast wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 35 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 51. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph.

    High: 51 °F

    Mostly Sunny
    and Breezy
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow showers before 11pm, then a slight chance of snow showers between 11pm and 1am.  Mostly cloudy, with a low around 28. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 42. West wind around 5 mph.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30. South wind around 5 mph.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am.  Partly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 26. Calm wind.
Tuesday
Mostly sunny, with a high near 48. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 35. Southeast wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday
Partly sunny, with a high near 51. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
A slight chance of rain and snow showers before 11pm, then a slight chance of snow showers between 11pm and 1am. Mostly cloudy, with a low around 28. Northwest wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Thursday
Partly sunny, with a high near 42. West wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 30. South wind around 5 mph.
Friday
Mostly sunny, with a high near 52.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 34.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 44.
Sunday Night
Mostly clear, with a low around 24.
Monday
Mostly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Tallassee TN
 35.51°N 83.93°W (Elev. 1939 ft)
12:31 am EST Dec 9, 2025
3am EST Dec 9, 2025-6pm EST Dec 15, 2025
 
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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