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.

Mostly Cloudy

35°F

2°C

Humidity 67%
Wind Speed W 6 mph
Barometer 30.03 in (1017.0 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 11 Dec 6:53 am EST
Extended Forecast for

4 Miles ESE Karns TN

  • Today

    Today: Mostly sunny, with a high near 42. West wind around 5 mph.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of snow showers between 8pm and 1am.  Increasing clouds, with a low around 33. Calm wind becoming southwest around 5 mph after midnight.  Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 53. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 53 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. West wind around 5 mph becoming calm  after midnight.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 50. Calm wind becoming west around 5 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain showers before 3am, then a chance of snow showers.  Partly cloudy, with a low around 24. Calm wind becoming north around 5 mph in the evening.  Chance of precipitation is 30%.

    Low: 24 °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 30. North wind around 10 mph, with gusts as high as 20 mph.

    High: 30 °F

    Chance Snow
    Showers then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 14.

    Low: 14 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 42. West wind around 5 mph.
Tonight
A slight chance of snow showers between 8pm and 1am. Increasing clouds, with a low around 33. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 20%.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 53. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 32. West wind around 5 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 50. Calm wind becoming west around 5 mph.
Saturday Night
A chance of rain showers before 3am, then a chance of snow showers. Partly cloudy, with a low around 24. Calm wind becoming north around 5 mph in the evening. Chance of precipitation is 30%.
Sunday
A 30 percent chance of snow showers before 7am. Mostly sunny, with a high near 30. North wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 14.
Monday
Sunny, with a high near 37.
Monday Night
Mostly clear, with a low around 23.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Karns TN
 35.94°N 84.05°W (Elev. 974 ft)
6:06 am EST Dec 11, 2025
7am EST Dec 11, 2025-6pm EST Dec 17, 2025
 
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Additional Resources

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Hourly Weather Forecast

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