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

52°F

11°C

Humidity 47%
Wind Speed S 7 mph
Barometer 30.06 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 9 Feb 2:50 pm CST
Extended Forecast for

5 Miles E Carlinville IL

  • Tonight

    Tonight: Mostly clear, with a low around 40. South wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 55. Southwest wind 8 to 14 mph becoming north in the morning. Winds could gust as high as 21 mph.

    High: 55 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. North wind 6 to 8 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

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

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. Light and variable wind.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 43.

    High: 43 °F

    Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Chance Rain

  • Friday

    Friday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 40. South wind 7 to 11 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 55. Southwest wind 8 to 14 mph becoming north in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 27. North wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 46. Northwest wind 3 to 7 mph.
Wednesday Night
Mostly cloudy, with a low around 28. Light and variable wind.
Thursday
Cloudy, with a high near 43.
Thursday Night
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 44.
Friday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 31.
Saturday
Rain likely, mainly after noon. Cloudy, with a high near 45. Chance of precipitation is 60%.
Saturday Night
Rain. Low around 34. Chance of precipitation is 80%.
Sunday
A 50 percent chance of rain. Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 30.
Washington's Birthday
Mostly sunny, with a high near 53.
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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:
1:41 pm CST Feb 9, 2026
Forecast Valid:
3pm CST Feb 9, 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