Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

72°F

22°C

Humidity 41%
Wind Speed S 9 mph
Barometer 30.16 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 9 Oct 10:50 am CDT
Extended Forecast for

4 Miles SE Carlinville IL

  • Today

    Today: Sunny, with a high near 87. South wind 7 to 10 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. Southeast wind around 6 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly cloudy, with a high near 81. Southeast wind 3 to 7 mph.

    High: 81 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 56. East wind around 6 mph becoming calm  after midnight.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 81. Light and variable wind.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 87.

    High: 87 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 87. South wind 7 to 10 mph.
Tonight
Mostly clear, with a low around 58. Southeast wind around 6 mph.
Saturday
Mostly cloudy, with a high near 81. Southeast wind 3 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 56. East wind around 6 mph becoming calm after midnight.
Sunday
Sunny, with a high near 81. Light and variable wind.
Sunday Night
Mostly clear, with a low around 57.
Columbus Day
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 65.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 87.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 59.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 81.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Carlinville IL
 39.25°N 89.83°W (Elev. 650 ft)
9:21 am CDT Oct 9, 2026
11am CDT Oct 9, 2026-6pm CDT Oct 15, 2026
 
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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