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.

Mostly Cloudy

75°F

24°C

Humidity 61%
Wind Speed S 15 mph
Barometer 29.96 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 3 Apr 9:50 pm CDT
Extended Forecast for

4 Miles SE Carlinville IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 51. South wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.

    Low: 51 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers, mainly before 9am. Temperature falling to around 52 by 1pm. West wind 11 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 59 °F⇓

    Showers then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37. West wind 10 to 16 mph, with gusts as high as 25 mph.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 55. Northwest wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37. West wind around 6 mph.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 51. South wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Saturday
Showers, mainly before 9am. Temperature falling to around 52 by 1pm. West wind 11 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Saturday Night
Mostly clear, with a low around 37. West wind 10 to 16 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 55. Northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 37. West wind around 6 mph.
Monday
Sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Partly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 72.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 73.
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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 CDT Apr 3, 2026
Forecast Valid:
9pm CDT Apr 3, 2026-6pm CDT Apr 10, 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