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

84°F

29°C

Humidity 59%
Wind Speed NE 9 mph
Barometer 30.10 in (1017.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 8 Aug 3:53 pm EDT
Extended Forecast for

6 Miles WNW Tallassee TN

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Mostly sunny, with a high near 80. Calm wind.

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 10pm.  Partly cloudy, with a low around 65. Calm wind becoming southeast around 5 mph in the evening.  Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 83. Southeast wind around 5 mph becoming calm  in the morning.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. Light south wind becoming southeast 5 to 10 mph in the evening.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 83. East wind around 5 mph becoming calm  in the morning.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 68. Southeast wind 5 to 10 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 83. East wind around 5 mph becoming calm  in the morning.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Slight Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 80. Calm wind.
Tonight
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 10pm. Partly cloudy, with a low around 65. Calm wind becoming southeast around 5 mph in the evening. Chance of precipitation is 20%.
Saturday
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 83. Southeast wind around 5 mph becoming calm in the morning.
Saturday Night
Partly cloudy, with a low around 65. Light south wind becoming southeast 5 to 10 mph in the evening.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. East wind around 5 mph becoming calm in the morning.
Sunday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. Southeast wind 5 to 10 mph.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. East wind around 5 mph becoming calm in the morning.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 68.
Tuesday
A slight chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WNW Tallassee TN
 35.58°N 84.03°W (Elev. 1854 ft)
1:37 pm EDT Aug 8, 2025
4pm EDT Aug 8, 2025-6pm EDT Aug 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database