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

22°C

72°F

Humidity 94%
Wind Speed NE 6 km/h
Barometer 1015.9 mb (30.02 in)
Dewpoint 21°C (70°F)
Visibility 14 km
Last update 14 Jul 5:54 am CDT
Extended Forecast for

4 Miles SW Carrollton IL

  • Today

    Today: Patchy fog before 9am. Otherwise, partly sunny, with a high near 29. East wind 3 to 8 km/h.

    High: 29 °C

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 21. East wind 3 to 8 km/h.

    Low: 21 °C

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 30. Southeast wind 5 to 10 km/h.

    High: 30 °C

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22. Southeast wind 5 to 8 km/h.

    Low: 22 °C

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 33. Southwest wind 8 to 11 km/h.

    High: 33 °C

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 23.

    Low: 23 °C

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 33.

    High: 33 °C

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 22.

    Low: 22 °C

    Chance
    T-storms

  • Friday

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

    High: 30 °C

    Chance
    T-storms

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, partly sunny, with a high near 29. East wind 3 to 8 km/h.
Tonight
Partly cloudy, with a low around 21. East wind 3 to 8 km/h.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 30. Southeast wind 5 to 10 km/h.
Tuesday Night
Partly cloudy, with a low around 22. Southeast wind 5 to 8 km/h.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 33. Southwest wind 8 to 11 km/h.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 23.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 33.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 22.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 30.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 22.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 32.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 22.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Carrollton IL
 39.25°N 90.46°W (Elev. 600 m)
Last Update:
5:21 am CDT Jul 14, 2025
Forecast Valid:
6am CDT Jul 14, 2025-6pm CDT Jul 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