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.

Fog/Mist

49°F

9°C

Humidity 86%
Wind Speed E 6 mph
Barometer 30.18 in (1021.8 mb)
Dewpoint 45°F (7°C)
Visibility 6.00 mi
Wind Chill46°F (8°C)
Last update 19 Nov 3:54 pm CST
Extended Forecast for

Rockbridge IL

  • Tonight

    Tonight: Cloudy, with a low around 43. Calm wind becoming southeast around 5 mph after midnight.

    Low: 43 °F

    Cloudy

  • Thursday

    Thursday: A slight chance of rain before 4pm, then a chance of rain after 5pm. Cloudy, with a high near 59. Southeast wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 59 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 50. East wind 3 to 5 mph. Chance of precipitation is 70%.

    Low: 50 °F

    Rain Likely

  • Friday

    Friday: Rain. High near 58. Northeast wind 6 to 10 mph. Chance of precipitation is 90%.

    High: 58 °F

    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 39. North wind 5 to 8 mph.

    Low: 39 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 43. Calm wind becoming southeast around 5 mph after midnight.
Thursday
A slight chance of rain before 4pm, then a chance of rain after 5pm. Cloudy, with a high near 59. Southeast wind 6 to 8 mph. Chance of precipitation is 30%.
Thursday Night
Rain likely. Cloudy, with a low around 50. East wind 3 to 5 mph. Chance of precipitation is 70%.
Friday
Rain. High near 58. Northeast wind 6 to 10 mph. Chance of precipitation is 90%.
Friday Night
A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 39. North wind 5 to 8 mph.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
A 20 percent chance of rain. Mostly cloudy, with a high near 58.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 44.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rockbridge IL
 39.26°N 90.2°W (Elev. 509 ft)
Last Update:
3:16 pm CST Nov 19, 2025
Forecast Valid:
4pm CST Nov 19, 2025-6pm CST Nov 26, 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