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

Hazardous Weather Conditions

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Fair

74°F

23°C

Humidity 74%
Wind Speed W 10 mph
Barometer 29.95 in (1014.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 19 Jun 9:56 am CDT
Extended Forecast for

Lanark IL

  • Juneteenth

    Juneteenth: Sunny, with a high near 82. Northwest wind around 10 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. West wind around 5 mph becoming south after midnight.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 85. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Breezy.

    High: 94 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

Juneteenth
Sunny, with a high near 82. Northwest wind around 10 mph.
Tonight
Mostly clear, with a low around 64. West wind around 5 mph becoming south after midnight.
Friday
A 30 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 85. South wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 73. South wind around 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 94. Breezy.
Saturday Night
Clear, with a low around 75.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 94.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 50%.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Wednesday
Showers likely. Partly sunny, with a high near 87. Chance of precipitation is 70%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lanark IL
 42.11°N 89.83°W (Elev. 883 ft)
Last Update:
9:47 am CDT Jun 19, 2025
Forecast Valid:
10am CDT Jun 19, 2025-6pm CDT Jun 25, 2025
 
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