Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

42°F

6°C

Humidity 85%
Wind Speed NW 5 mph
Barometer 30.09 in (1019.1 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 8 Dec 12:53 pm EST
Extended Forecast for

4 Miles SW Tallassee TN

Winter Weather Advisory until December 8, 07:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 8, 07:00pm

    NOW until 7:00pm Mon

    Winter Weather Advisory

  • This Afternoon

    High: 43 °F

    Chance
    Showers

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 27. North wind around 5 mph becoming calm  in the evening.

    Low: 27 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. Calm wind becoming west around 5 mph in the afternoon.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37. South wind 5 to 10 mph, with gusts as high as 30 mph.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 54. South wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 54 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30. West wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44. Calm wind becoming west around 5 mph.

    High: 44 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 30 percent chance of showers, mainly before 2pm. Cloudy, with a high near 43. North wind around 5 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 27. North wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 49. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 37. South wind 5 to 10 mph, with gusts as high as 30 mph.
Wednesday
Mostly sunny, with a high near 54. South wind 10 to 15 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 25 mph.
Thursday
Partly sunny, with a high near 44. Calm wind becoming west around 5 mph.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
Mostly sunny, with a high near 52.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 30.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Tallassee TN
 35.51°N 83.99°W (Elev. 1188 ft)
12:31 pm EST Dec 8, 2025
1pm EST Dec 8, 2025-6pm EST Dec 14, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database