National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

70°F

21°C

Humidity 64%
Wind Speed SE 10 mph
Barometer 29.80 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Oct 6:50 pm CDT
Extended Forecast for

3 Miles SE Carlinville IL

  • Tonight

    Tonight: Mostly cloudy during the early evening, then becoming clear, with a low around 60. South wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 10am. Cloudy, with a high near 75. South wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 47. Breezy, with a southwest wind 7 to 12 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%.

    Low: 47 °F

    Showers and
    Breezy

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 61. Northwest wind around 18 mph, with gusts as high as 28 mph.

    High: 61 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Clear, with a low around 41. West wind 5 to 7 mph becoming light and variable.

    Low: 41 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then becoming clear, with a low around 60. South wind 7 to 11 mph, with gusts as high as 20 mph.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 10am. Cloudy, with a high near 75. South wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Saturday Night
Showers and possibly a thunderstorm. Low around 47. Breezy, with a southwest wind 7 to 12 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%.
Sunday
A 20 percent chance of showers before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 61. Northwest wind around 18 mph, with gusts as high as 28 mph.
Sunday Night
Clear, with a low around 41. West wind 5 to 7 mph becoming light and variable.
Monday
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Clear, with a low around 36.
Wednesday
Sunny, with a high near 63.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 42.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 68.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Carlinville IL
 39.25°N 89.83°W (Elev. 650 ft)
Last Update:
7:21 pm CDT Oct 17, 2025
Forecast Valid:
7pm CDT Oct 17, 2025-6pm CDT Oct 24, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation