Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

25°F

-4°C

Humidity 63%
Wind Speed W 17 G 23 mph
Barometer 30.36 in (1028.5 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 22 Feb 2:54 am CST
Extended Forecast for

Rockbridge IL

  • Overnight

    Overnight: Partly cloudy, with a low around 17. Northwest wind 15 to 17 mph, with gusts as high as 25 mph.

    Low: 17 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 29. Blustery, with a northwest wind 17 to 22 mph, with gusts as high as 34 mph.

    High: 29 °F

    Mostly Sunny
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 12. Northwest wind 14 to 17 mph, with gusts as high as 28 mph.

    Low: 12 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 31. Northwest wind 8 to 16 mph, with gusts as high as 26 mph.

    High: 31 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17. Calm wind becoming south 5 to 9 mph after midnight.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after midnight.  Mostly cloudy, with a low around 33. Chance of precipitation is 60%.

    Low: 33 °F

    Rain Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 17. Northwest wind 15 to 17 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 29. Blustery, with a northwest wind 17 to 22 mph, with gusts as high as 34 mph.
Sunday Night
Partly cloudy, with a low around 12. Northwest wind 14 to 17 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 31. Northwest wind 8 to 16 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 17. Calm wind becoming south 5 to 9 mph after midnight.
Tuesday
Mostly cloudy, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Thursday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 49.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 37.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Rockbridge IL
 39.26°N 90.2°W (Elev. 509 ft)
1:41 am CST Feb 22, 2026
3am CST Feb 22, 2026-6pm CST Feb 28, 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