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.

Fair

63°F

17°C

Humidity 77%
Wind Speed S 8 mph
Barometer 29.67 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 22 Mar 6:45 am CDT
Extended Forecast for

5 Miles E Carlinville IL

  • Today

    Today: Increasing clouds, with a high near 83. Breezy, with a south wind 10 to 20 mph becoming north in the afternoon.

    High: 83 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Breezy, with a north wind 19 to 24 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 37 mph.

    Low: 33 °F

    Slight Chance
    T-storms and
    Breezy then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 52. Northeast wind 9 to 11 mph.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36. East wind around 6 mph.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. South wind 6 to 8 mph.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.

    Low: 57 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 83.

    High: 83 °F

    Sunny then
    Chance
    Showers

Detailed Forecast

Today
Increasing clouds, with a high near 83. Breezy, with a south wind 10 to 20 mph becoming north in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Breezy, with a north wind 19 to 24 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 37 mph.
Monday
Mostly sunny, with a high near 52. Northeast wind 9 to 11 mph.
Monday Night
Mostly cloudy, with a low around 36. East wind around 6 mph.
Tuesday
Mostly sunny, with a high near 62. South wind 6 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 83.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 39. Chance of precipitation is 50%.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 50.
Friday Night
Mostly clear, with a low around 30.
Saturday
Sunny, with a high near 56.
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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:
4:16 am CDT Mar 22, 2026
Forecast Valid:
7am CDT Mar 22, 2026-6pm CDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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