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

Hazardous Weather Conditions

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

72°F

22°C

Humidity 91%
Wind Speed N 8 mph
Barometer 29.96 in (1014.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 14 Jun 8:54 am CDT
Extended Forecast for

Carrollton IL

  • Today

    Today: A slight chance of showers and thunderstorms between 2pm and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. North wind 7 to 9 mph. Chance of precipitation is 20%.

    High: 81 °F

    Cloudy then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 64. Northeast wind 3 to 7 mph.

    Low: 64 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Northeast wind 3 to 5 mph.

    High: 83 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 67. Light southeast wind.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 70%.

    High: 86 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
A slight chance of showers and thunderstorms between 2pm and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. North wind 7 to 9 mph. Chance of precipitation is 20%.
Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 64. Northeast wind 3 to 7 mph.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Northeast wind 3 to 5 mph.
Sunday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 67. Light southeast wind.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69.
Juneteenth
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 67.
Friday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carrollton IL
 39.29°N 90.4°W (Elev. 568 ft)
Last Update:
9:22 am CDT Jun 14, 2025
Forecast Valid:
9am CDT Jun 14, 2025-6pm CDT Jun 20, 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