Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

79°F

26°C

Humidity 45%
Wind Speed N 9 mph
Barometer 30.18 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 31 Aug 3:50 pm CDT
Extended Forecast for

3 Miles SSE Carlinville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. East wind around 6 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 79. East wind 3 to 5 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. Light northeast wind.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 49. Chance of precipitation is 50%.

    Low: 49 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 54. East wind around 6 mph becoming calm in the evening.
Labor Day
Mostly sunny, with a high near 79. East wind 3 to 5 mph.
Monday Night
Mostly cloudy, with a low around 56. Calm wind.
Tuesday
Mostly sunny, with a high near 80. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 56. Calm wind.
Wednesday
Sunny, with a high near 82.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 49.
Friday
Mostly sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Carlinville IL
 39.25°N 89.86°W (Elev. 551 ft)
4:16 pm CDT Aug 31, 2025
4pm CDT Aug 31, 2025-6pm CDT Sep 7, 2025
 
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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