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

41°F

5°C

Humidity 62%
Wind Speed NW 20 G 25 mph
Barometer 30.15 in (1021.2 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 10 Jan 7:54 pm CST
Extended Forecast for

Rockbridge IL

  • Tonight

    Tonight: A chance of rain before 11pm, then a chance of flurries between 11pm and 4am. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 25. Blustery, with a west wind 15 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.

    Low: 25 °F

    Chance
    Rain/Flurries
    then Chance
    Flurries and
    Blustery

  • Sunday

    Sunday: Sunny, with a high near 37. Northwest wind 7 to 17 mph, with gusts as high as 31 mph.

    High: 37 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 25. Southwest wind 5 to 8 mph.

    Low: 25 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 48. Southwest wind 7 to 10 mph.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. Southwest wind 6 to 10 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of rain before 11pm, then a chance of flurries between 11pm and 4am. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 25. Blustery, with a west wind 15 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 37. Northwest wind 7 to 17 mph, with gusts as high as 31 mph.
Sunday Night
Clear, with a low around 25. Southwest wind 5 to 8 mph.
Monday
Sunny, with a high near 48. Southwest wind 7 to 10 mph.
Monday Night
Partly cloudy, with a low around 34. Southwest wind 6 to 10 mph.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 18.
Thursday
Mostly sunny, with a high near 35.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 41.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 31.
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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:
8:16 pm CST Jan 10, 2026
Forecast Valid:
8pm CST Jan 10, 2026-6pm CST Jan 17, 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