National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

32°F

0°C

Humidity 69%
Wind Speed E 9 mph
Barometer 30.17 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 8 Feb 6:50 pm CST
Extended Forecast for

5 Miles E Carlinville IL

  • Tonight

    Tonight: Partly cloudy, with a low around 24. East wind 3 to 8 mph.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 48. Calm wind becoming south around 6 mph in the afternoon.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35. South wind 7 to 10 mph becoming west after midnight.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 53. West wind 7 to 9 mph becoming north in the afternoon.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. North wind around 6 mph.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain and snow after noon. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow, mainly before midnight. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.

    Low: 28 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 24. East wind 3 to 8 mph.
Monday
Mostly sunny, with a high near 48. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 35. South wind 7 to 10 mph becoming west after midnight.
Tuesday
Sunny, with a high near 53. West wind 7 to 9 mph becoming north in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 28. North wind around 6 mph.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
A chance of rain and snow after noon. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow, mainly before midnight. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Friday
A 20 percent chance of rain after noon. Partly sunny, with a high near 42.
Friday Night
A 30 percent chance of rain. Partly cloudy, with a low around 28.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 42.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 29.
Sunday
A 20 percent chance of rain. Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Carlinville IL
 39.27°N 89.8°W (Elev. 650 ft)
Last Update:
4:31 pm CST Feb 8, 2026
Forecast Valid:
7pm CST Feb 8, 2026-6pm CST Feb 15, 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