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.

A Few Clouds

73°F

23°C

Humidity 87%
Wind Speed SW 3 mph
Barometer 29.96 in (1014.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 2 Sep 3:56 am CDT
Extended Forecast for

Fulton IL

Heat Advisory September 2, 04:20am until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 2, 04:20am until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Today

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 74. Southwest wind around 5 mph.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 2pm. Mostly sunny, with a high near 92. Heat index values as high as 105. Calm wind becoming southwest around 5 mph in the morning.

    High: 92 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73. Southeast wind around 5 mph.

    Low: 73 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A chance of thunderstorms before 7am. Mostly sunny, with a high near 91. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    T-storms then
    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 93. Heat index values as high as 103. Southwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 74. Southwest wind around 5 mph.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Mostly sunny, with a high near 92. Heat index values as high as 105. Calm wind becoming southwest around 5 mph in the morning.
Thursday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73. Southeast wind around 5 mph.
Friday
A chance of thunderstorms before 7am. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Partly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 66.
Labor Day
A 30 percent chance of showers. Mostly sunny, with a high near 84.
Monday Night
Mostly cloudy, with a low around 64.
Tuesday
Partly sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fulton IL
 41.85°N 90.14°W (Elev. 597 ft)
Last Update:
2:36 am CDT Sep 2, 2026
Forecast Valid:
4am CDT Sep 2, 2026-6pm CDT Sep 8, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation