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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

27°F

-3°C

Humidity 64%
Wind Speed S 8 mph
Barometer 30.20 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 1 Feb 7:50 pm CST
Extended Forecast for

4 Miles SE Carlinville IL

  • Tonight

    Tonight: A chance of snow before 11pm, then a chance of flurries between 11pm and midnight. Cloudy, with a low around 17. South wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 40%.

    Low: 17 °F

    Chance Snow
    then Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 34. West wind around 6 mph becoming calm in the afternoon.

    High: 34 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Cloudy, with a low around 21. Light and variable wind.

    Low: 21 °F

    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 31. North wind 3 to 7 mph.

    High: 31 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 13. North wind 3 to 5 mph.

    Low: 13 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of snow before 11pm, then a chance of flurries between 11pm and midnight. Cloudy, with a low around 17. South wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 40%.
Monday
Mostly cloudy, with a high near 34. West wind around 6 mph becoming calm in the afternoon.
Monday Night
Cloudy, with a low around 21. Light and variable wind.
Tuesday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 31. North wind 3 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 13. North wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 27.
Wednesday Night
Partly cloudy, with a low around 11.
Thursday
Partly sunny, with a high near 36.
Thursday Night
Partly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 41.
Friday Night
Partly cloudy, with a low around 18.
Saturday
Sunny, with a high near 32.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Carlinville IL
 39.25°N 89.83°W (Elev. 650 ft)
Last Update:
6:46 pm CST Feb 1, 2026
Forecast Valid:
8pm CST Feb 1, 2026-6pm CST Feb 8, 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