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

27°F

-3°C

Humidity 70%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 9 Feb 2:55 am CST
Extended Forecast for

5 Miles E Carlinville IL

  • Overnight

    Overnight: Clear, with a low around 24. East wind 5 to 7 mph.

    Low: 24 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 49. Light and variable wind becoming south 5 to 7 mph in the afternoon.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. South wind 6 to 9 mph becoming west after midnight.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 53. Northwest wind 7 to 10 mph.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27. North wind around 7 mph.

    Low: 27 °F

    Partly 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 29.

    Low: 29 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain after noon. Cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain and snow. Cloudy, with a low around 28. Chance of precipitation is 40%.

    Low: 28 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Clear, with a low around 24. East wind 5 to 7 mph.
Monday
Sunny, with a high near 49. Light and variable wind becoming south 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 36. South wind 6 to 9 mph becoming west after midnight.
Tuesday
Sunny, with a high near 53. Northwest wind 7 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 27. North wind around 7 mph.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
A 20 percent chance of rain after noon. Cloudy, with a high near 42.
Thursday Night
A chance of rain and snow. Cloudy, with a low around 28. Chance of precipitation is 40%.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 41.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 28.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 43.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 30.
Sunday
A 20 percent chance of rain. Sunny, with a high near 44.
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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:
2:57 am CST Feb 9, 2026
Forecast Valid:
3am CST Feb 9, 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