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

54°F

12°C

Humidity 72%
Wind Speed Vrbl 3 mph
Barometer 30.19 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 23 Nov 12:50 pm CST
Extended Forecast for

3 Miles SSE Carlinville IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a steady temperature around 50. Light and variable wind.

    High: 50 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 42. South wind 5 to 7 mph.

    Low: 42 °F

    Increasing
    Clouds

  • Monday

    Monday: Rain likely, mainly after 5pm. Cloudy, with a high near 57. South wind 7 to 10 mph. Chance of precipitation is 60%.

    High: 57 °F

    Mostly Cloudy
    then Rain
    Likely

  • Monday Night

    Monday Night: Rain. Low around 47. Southeast wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 90%.

    Low: 47 °F

    Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 60. Calm wind becoming west 5 to 7 mph in the morning.

    High: 60 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a steady temperature around 50. Light and variable wind.
Tonight
Increasing clouds, with a low around 42. South wind 5 to 7 mph.
Monday
Rain likely, mainly after 5pm. Cloudy, with a high near 57. South wind 7 to 10 mph. Chance of precipitation is 60%.
Monday Night
Rain. Low around 47. Southeast wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 90%.
Tuesday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 60. Calm wind becoming west 5 to 7 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 24.
Thanksgiving Day
Mostly sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Partly sunny, with a high near 42.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 28.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Carlinville IL
 39.25°N 89.86°W (Elev. 551 ft)
Last Update:
12:26 pm CST Nov 23, 2025
Forecast Valid:
1pm CST Nov 23, 2025-6pm CST Nov 29, 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