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

55°F

13°C

Humidity 47%
Wind Speed SE 7 mph
Barometer 29.88 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 26 Feb 12:50 pm CST
Extended Forecast for

5 Miles E Carlinville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 52. Southwest wind around 5 mph becoming calm.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 33. Calm wind becoming southwest around 5 mph after midnight.

    Low: 33 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 66. Southwest wind 6 to 15 mph, with gusts as high as 22 mph.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36. Southwest wind 6 to 9 mph becoming north after midnight.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 56. East wind 6 to 10 mph.

    High: 56 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of rain and snow after noon. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.

    High: 39 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow likely, mainly before midnight. Cloudy, with a low around 25. Chance of precipitation is 70%.

    Low: 25 °F

    Rain/Snow
    Likely

  • Monday

    Monday: A slight chance of rain and snow before noon. Mostly cloudy, with a high near 39. Chance of precipitation is 20%.

    High: 39 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 52. Southwest wind around 5 mph becoming calm.
Tonight
Clear, with a low around 33. Calm wind becoming southwest around 5 mph after midnight.
Friday
Sunny, with a high near 66. Southwest wind 6 to 15 mph, with gusts as high as 22 mph.
Friday Night
Mostly clear, with a low around 36. Southwest wind 6 to 9 mph becoming north after midnight.
Saturday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 56. East wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
A chance of rain and snow after noon. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.
Sunday Night
Rain and snow likely, mainly before midnight. Cloudy, with a low around 25. Chance of precipitation is 70%.
Monday
A slight chance of rain and snow before noon. Mostly cloudy, with a high near 39. Chance of precipitation is 20%.
Monday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 27.
Tuesday
A 50 percent chance of rain. Cloudy, with a high near 42.
Tuesday Night
Rain likely. Cloudy, with a low around 33. Chance of precipitation is 60%.
Wednesday
Rain likely. Cloudy, with a high near 53. Chance of precipitation is 60%.
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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:
12:26 pm CST Feb 26, 2026
Forecast Valid:
1pm CST Feb 26, 2026-6pm CST Mar 4, 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