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

23°C

73°F

Humidity 65%
Wind Speed SW 20 km/h
Barometer 29.94 in
Dewpoint 16°C (61°F)
Visibility 16 km
Last update 16 Apr 12:50 pm CDT
Extended Forecast for

3 Miles SSE Carlinville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 27. West wind 13 to 16 km/h.

    High: 27 °C

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 13. South wind 3 to 8 km/h.

    Low: 13 °C

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 28. South wind 10 to 15 km/h increasing to 22 to 27 km/h in the afternoon. Winds could gust as high as 40 km/h.

    High: 28 °C

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10pm. Low around 7. South wind around 24 km/h becoming west after midnight. Winds could gust as high as 39 km/h. Chance of precipitation is 100%.

    Low: 7 °C

    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 13. Northwest wind 24 to 27 km/h, with gusts as high as 40 km/h. Chance of precipitation is 50%.

    High: 13 °C

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 2.

    Low: 2 °C

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 16.

    High: 16 °C

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 3.

    Low: 3 °C

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 21.

    High: 21 °C

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 27. West wind 13 to 16 km/h.
Tonight
Mostly clear, with a low around 13. South wind 3 to 8 km/h.
Friday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 28. South wind 10 to 15 km/h increasing to 22 to 27 km/h in the afternoon. Winds could gust as high as 40 km/h.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10pm. Low around 7. South wind around 24 km/h becoming west after midnight. Winds could gust as high as 39 km/h. Chance of precipitation is 100%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 13. Northwest wind 24 to 27 km/h, with gusts as high as 40 km/h. Chance of precipitation is 50%.
Saturday Night
Mostly clear, with a low around 2.
Sunday
Sunny, with a high near 16.
Sunday Night
Mostly clear, with a low around 3.
Monday
Sunny, with a high near 21.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Mostly sunny, with a high near 24.
Tuesday Night
Partly cloudy, with a low around 12.
Wednesday
Mostly sunny, with a high near 24.
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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 m)
Last Update:
1:26 pm CDT Apr 16, 2026
Forecast Valid:
1pm CDT Apr 16, 2026-6pm CDT Apr 22, 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