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.

Overcast

23°F

-5°C

Humidity 74%
Wind Speed N 8 mph
Barometer 30.51 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 30 Nov 9:45 pm CST
Extended Forecast for

4 Miles SE Carlinville IL

  • Tonight

    Tonight: Cloudy, with a low around 17. Northwest wind around 5 mph becoming calm after midnight.

    Low: 17 °F

    Cloudy

  • Monday

    Monday: Snow, mainly after 4pm. High near 29. East wind 3 to 6 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 29 °F

    Cloudy then
    Snow

  • Monday Night

    Monday Night: Snow, mainly before 1am. Low around 17. Calm wind becoming west 5 to 7 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 17 °F

    Snow then
    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 27. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 16. Calm wind becoming south 5 to 7 mph in the evening.

    Low: 16 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny and cold, with a high near 16.

    High: 16 °F

    Cold

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 4.

    Low: 4 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 17. Northwest wind around 5 mph becoming calm after midnight.
Monday
Snow, mainly after 4pm. High near 29. East wind 3 to 6 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday Night
Snow, mainly before 1am. Low around 17. Calm wind becoming west 5 to 7 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Partly sunny, with a high near 27. Northwest wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Partly cloudy, with a low around 16. Calm wind becoming south 5 to 7 mph in the evening.
Wednesday
Partly sunny, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 8.
Thursday
Mostly sunny and cold, with a high near 16.
Thursday Night
Mostly cloudy, with a low around 4.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 29.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 20.
Saturday
Mostly cloudy, with a high near 33.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
Mostly cloudy, with a high near 32.
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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:
8:06 pm CST Nov 30, 2025
Forecast Valid:
9pm CST Nov 30, 2025-6pm CST Dec 7, 2025
 
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