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.

Partly Cloudy

72°F

22°C

Humidity 73%
Wind Speed NE 7 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 12 Jun 8:56 am CDT
Extended Forecast for

Lanark IL

  • Today

    Today: A slight chance of showers and thunderstorms between 3pm and 4pm, then a slight chance of showers after 4pm. Partly sunny, with a high near 86. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 86 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and midnight. Mostly cloudy, with a low around 61. East wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Southeast wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 63. East wind around 5 mph. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of thunderstorms before 7pm. Partly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers and thunderstorms between 3pm and 4pm, then a slight chance of showers after 4pm. Partly sunny, with a high near 86. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and midnight. Mostly cloudy, with a low around 61. East wind 5 to 10 mph. Chance of precipitation is 20%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Southeast wind 5 to 10 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 63. East wind around 5 mph. Chance of precipitation is 30%.
Saturday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Saturday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 60.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lanark IL
 42.11°N 89.83°W (Elev. 883 ft)
Last Update:
8:31 am CDT Jun 12, 2025
Forecast Valid:
9am CDT Jun 12, 2025-6pm CDT Jun 18, 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