Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Severe Thunderstorms With Heavy Rain Possible In The Upper Midwest; Excessive Heat For Central U.S.

Several rounds of strong to severe thunderstorms will be possible from the northern Plains and upper Midwest to the Great Lakes through Friday. Damaging winds, large hail, and flooding will be the primary threats with these storms. Excessive heat will grip the central Plains with heat indices approaching 105 to 110 degrees. Very hot and humid conditions are likely to expand into the Mid Atlantic. Read More >

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

A Few Clouds

84°F

29°C

Humidity 88%
Wind Speed E 7 mph
Barometer 29.84 in (1011.6 mb)
Dewpoint 80°F (27°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 21 Jul 5:56 pm CDT
Extended Forecast for

Thomson IL

Flash Flood Watch until July 22, 09:00am
Severe T-storm Watch until July 22, 12:00am
Click here for hazard details and duration
Flash Flood Watch
Severe T-storm Watch
  •  
    Flash Flood Watch until July 22, 09:00am
    Severe T-storm Watch until July 22, 12:00am

    NOW: Multiple
    hazards in effect

    Click HERE for Details

  • Tonight

    Tonight: Showers and thunderstorms. Some storms could be severe, with large hail, damaging winds, and heavy rain.  Low around 72. South wind 5 to 10 mph.  Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.

    Severe
    Thunderstorms

    Low: 72 °F

  • Saturday

    Saturday: Scattered showers and thunderstorms, mainly before 7am. Some of the storms could produce heavy rain.  Partly sunny, with a high near 88. South wind 5 to 10 mph becoming northwest in the afternoon.  Chance of precipitation is 30%.

    Heavy Rain

    High: 88 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 70. Northwest wind around 5 mph becoming calm  after midnight.

    Partly Cloudy

    Low: 70 °F

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 85. West wind 5 to 10 mph.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 85 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 61.

    Mostly Clear

    Low: 61 °F

  • Monday

    Monday: Sunny, with a high near 78.

    Sunny

    High: 78 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 60.

    Mostly Clear

    Low: 60 °F

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    Sunny

    High: 82 °F

Detailed Forecast

Tonight
Showers and thunderstorms. Some storms could be severe, with large hail, damaging winds, and heavy rain. Low around 72. South wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.
Saturday
Scattered showers and thunderstorms, mainly before 7am. Some of the storms could produce heavy rain. Partly sunny, with a high near 88. South wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 70. Northwest wind around 5 mph becoming calm after midnight.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. West wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Click Map For Forecast
Point Forecast:
Thomson IL
 41.96°N 90.1°W (Elev. 607 ft)
5:15 pm CDT Jul 21, 2017
6pm CDT Jul 21, 2017-6pm CDT Jul 28, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database