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

45°F

7°C

Humidity 87%
Wind Speed S 9 mph
Barometer 29.87 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 10 Feb 6:50 am CST
Extended Forecast for

5 Miles E Carlinville IL

  • Today

    Today: Sunny, with a high near 56. Southwest wind 7 to 14 mph becoming north in the afternoon.

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 27. North wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 46. Northwest wind 3 to 7 mph.

    High: 46 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 28. Light and variable wind.

    Low: 28 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, with a high near 45. Southeast wind 3 to 7 mph.

    High: 45 °F

    Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Friday Night

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

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 47. Chance of precipitation is 30%.

    High: 47 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 56. Southwest wind 7 to 14 mph becoming north in the afternoon.
Tonight
Mostly clear, with a low around 27. North wind 8 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 46. Northwest wind 3 to 7 mph.
Wednesday Night
Increasing clouds, with a low around 28. Light and variable wind.
Thursday
Cloudy, with a high near 45. Southeast wind 3 to 7 mph.
Thursday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 29.
Friday
Partly sunny, with a high near 47.
Friday Night
Mostly cloudy, with a low around 32.
Saturday
A slight chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 47. Chance of precipitation is 30%.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 35.
Sunday
A 40 percent chance of rain. Mostly sunny, with a high near 49.
Sunday Night
Mostly clear, with a low around 30.
Washington's Birthday
Mostly sunny, with a high near 55.
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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:
4:51 am CST Feb 10, 2026
Forecast Valid:
6am CST Feb 10, 2026-6pm CST Feb 16, 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