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 >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

37°F

3°C

Humidity 70%
Wind Speed N 14 mph
Barometer 30.20 in (1023.0 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 8 Dec 8:53 pm EST
Extended Forecast for

Louisville TN

  • Tonight

    Tonight: Mostly cloudy, with a low around 26. North wind around 5 mph becoming calm.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 54. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 54 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44. West wind around 5 mph.

    High: 44 °F

    Partly Sunny

  • Thursday Night

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

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 26. North wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 47. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 36. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 54. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly cloudy, with a low around 30. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, with a high near 44. West wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 30. Southwest wind around 5 mph.
Friday
Partly sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Louisville TN
 35.81°N 84.04°W (Elev. 850 ft)
6:06 pm EST Dec 8, 2025
9pm EST Dec 8, 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