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Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Overcast

66°F

19°C

Humidity 87%
Wind Speed NE 3 mph
Barometer 30.06 in (1017.9 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 20 Aug 7:56 am CDT
Extended Forecast for

Hillsdale IL

  • Today

    Today: Patchy fog before 9am. Otherwise, sunny, with a high near 81. Northeast wind around 5 mph.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. Calm wind becoming south around 5 mph after midnight.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 83. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 83 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 63. Northwest wind around 5 mph. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 81. Northeast wind around 5 mph.
Tonight
Mostly clear, with a low around 62. Calm wind becoming south around 5 mph after midnight.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 83. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 63. Northwest wind around 5 mph. Chance of precipitation is 40%.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsdale IL
 41.61°N 90.18°W (Elev. 584 ft)
Last Update:
5:26 am CDT Aug 20, 2026
Forecast Valid:
8am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation