National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Logan County Airport (KAAA)

Lat: 40.16°NLon: 89.34°WElev: 591ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Clinton IL

Flood Watch June 21, 03:57pm until June 22, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 21, 03:57pm until June 22, 01:00am

    NOW until 1:00am Mon

    Flood Watch

  • This Afternoon

    High: 70 °F

    Heavy Rain

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 3am. Cloudy, with a low around 59. South southeast wind 11 to 17 mph becoming north northwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 73. North wind 15 to 17 mph, with gusts as high as 23 mph.

    High: 73 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. Northeast wind 6 to 11 mph, with gusts as high as 16 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Northeast wind around 6 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. Light and variable wind becoming east southeast around 5 mph after midnight.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. South southwest wind 7 to 10 mph.

    High: 79 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 70. East southeast wind around 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 3am. Cloudy, with a low around 59. South southeast wind 11 to 17 mph becoming north northwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 50%.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 73. North wind 15 to 17 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 53. Northeast wind 6 to 11 mph, with gusts as high as 16 mph.
Tuesday
Sunny, with a high near 77. Northeast wind around 6 mph.
Tuesday Night
Partly cloudy, with a low around 58. Light and variable wind becoming east southeast around 5 mph after midnight.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. South southwest wind 7 to 10 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 60.
Friday
A chance of showers. Mostly sunny, with a high near 79.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clinton IL
 40.17°N 88.98°W (Elev. 728 ft)
Last Update:
2:41 pm CDT Jun 21, 2026
Forecast Valid:
3pm CDT Jun 21, 2026-6pm CDT Jun 27, 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