Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

20°F

-7°C

Humidity 55%
Wind Speed NW 14 mph
Barometer 30.50 in (1033.5 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 31 Jan 2:54 pm CST
Extended Forecast for

Rockbridge IL

  • Tonight

    Tonight: Mostly clear, with a low around 0. Northwest wind around 6 mph becoming light and variable  in the evening.

    Low: 0 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of snow, mainly between noon and 4pm.  Increasing clouds, with a high near 26. Light south wind increasing to 5 to 10 mph in the morning.

    High: 26 °F

    Partly Sunny
    then Chance
    Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17. South wind around 6 mph becoming light and variable  after midnight.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 35. West wind 3 to 6 mph.

    High: 35 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21. Calm wind becoming northeast around 5 mph after midnight.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow.  Mostly cloudy, with a high near 30.

    High: 30 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 9.

    Low: 9 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 0. Northwest wind around 6 mph becoming light and variable in the evening.
Sunday
A 30 percent chance of snow, mainly between noon and 4pm. Increasing clouds, with a high near 26. Light south wind increasing to 5 to 10 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 17. South wind around 6 mph becoming light and variable after midnight.
Monday
Partly sunny, with a high near 35. West wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 21. Calm wind becoming northeast around 5 mph after midnight.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 30.
Tuesday Night
Partly cloudy, with a low around 11.
Wednesday
Mostly sunny, with a high near 27.
Wednesday Night
Partly cloudy, with a low around 9.
Thursday
Partly sunny, with a high near 35.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 42.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
Rockbridge IL
 39.26°N 90.2°W (Elev. 509 ft)
3:16 pm CST Jan 31, 2026
3pm CST Jan 31, 2026-6pm CST Feb 7, 2026
 
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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