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

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

67°F

19°C

Humidity 84%
Wind Speed Calm
Barometer 30.15 in (1020.6 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 23 Jun 10:54 pm CDT
Extended Forecast for

2 Miles SSE Carrollton IL

  • Tonight

    Tonight: Partly cloudy, with a low around 60. Southeast wind 3 to 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Partly sunny, with a high near 81. Southeast wind 5 to 7 mph becoming southwest in the afternoon.

    High: 81 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Light and variable wind. Chance of precipitation is 60%.

    High: 83 °F

    Partly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 63. Light east wind. Chance of precipitation is 80%.

    Low: 63 °F

    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely then
    T-storms
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 88.

    High: 88 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

    Low: 71 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 60. Southeast wind 3 to 5 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Partly sunny, with a high near 81. Southeast wind 5 to 7 mph becoming southwest in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Light and variable wind. Chance of precipitation is 60%.
Thursday Night
Showers and possibly a thunderstorm. Low around 63. Light east wind. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 88.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Mostly sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Carrollton IL
 39.27°N 90.4°W (Elev. 551 ft)
Last Update:
9:26 pm CDT Jun 23, 2026
Forecast Valid:
11pm CDT Jun 23, 2026-6pm CDT Jun 30, 2026
 
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