Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

85°F

29°C

Humidity 50%
Wind Speed Vrbl 6 mph
Barometer 30.11 in (1018.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 9 Aug 4:53 pm EDT
Extended Forecast for

5 Miles SE Karns TN

  • Tonight

    Tonight: Mostly clear, with a low around 67. East wind around 5 mph becoming calm  in the evening.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 90. Calm wind becoming east around 5 mph in the afternoon.

    High: 90 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69. South wind around 5 mph becoming calm.

    Low: 69 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 89. Heat index values as high as 95. Calm wind becoming east around 5 mph.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm.

    Low: 72 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 89. Calm wind becoming south around 5 mph.

    High: 89 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 2am.  Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm.

    Low: 72 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am.  Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely then
    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 67. East wind around 5 mph becoming calm in the evening.
Sunday
Sunny and hot, with a high near 90. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 69. South wind around 5 mph becoming calm.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 95. Calm wind becoming east around 5 mph.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Calm wind becoming south around 5 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm.
Wednesday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 89.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Karns TN
 35.92°N 84.06°W (Elev. 997 ft)
1:38 pm EDT Aug 9, 2025
5pm EDT Aug 9, 2025-6pm EDT Aug 16, 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