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.

A Few Clouds

41°F

5°C

Humidity 82%
Wind Speed Calm
Barometer 30.08 in (1018.5 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 1 Nov 6:54 am CDT
Extended Forecast for

5 Miles WNW Rockbridge IL

Freeze Warning November 2, 01:00am until November 2, 07:00am
Click here for hazard details and duration
Freeze Warning

  • Today

    Today: A 20 percent chance of rain after 1pm. Increasing clouds, with a high near 50. West wind 3 to 8 mph.

    High: 50 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 30. Light northwest wind.

    Low: 30 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 9am. Otherwise, sunny, with a high near 54. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 54 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 35. South wind 3 to 6 mph.

    Low: 35 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 63. Southwest wind 6 to 9 mph becoming west in the afternoon.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of rain after 1pm. Increasing clouds, with a high near 50. West wind 3 to 8 mph.
Tonight
Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 30. Light northwest wind.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 54. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Clear, with a low around 35. South wind 3 to 6 mph.
Monday
Sunny, with a high near 63. Southwest wind 6 to 9 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Clear, with a low around 39.
Thursday
Sunny, with a high near 66.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 48.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Rockbridge IL
 39.29°N 90.29°W (Elev. 545 ft)
Last Update:
6:01 am CDT Nov 1, 2025
Forecast Valid:
7am CDT Nov 1, 2025-6pm CST Nov 7, 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