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

26°F

-3°C

Humidity 48%
Wind Speed N 15 G 21 mph
Barometer 30.12 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 14 Jan 10:35 pm CST
Extended Forecast for

6 Miles SE Carlinville IL

  • Tonight

    Tonight: Clear, with a low around 15. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 15 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 30. Northwest wind 6 to 8 mph becoming south in the afternoon.

    High: 30 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 25. South wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Snow Likely
    then Slight
    Chance Snow

  • Friday

    Friday: Mostly cloudy, with a high near 41. West wind 11 to 18 mph, with gusts as high as 26 mph.

    High: 41 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 17. West wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 17 °F

    Slight Chance
    Snow Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 21.

    High: 21 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 6.

    Low: 6 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 15. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Thursday
Increasing clouds, with a high near 30. Northwest wind 6 to 8 mph becoming south in the afternoon.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 25. South wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Mostly cloudy, with a high near 41. West wind 11 to 18 mph, with gusts as high as 26 mph.
Friday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 17. West wind 11 to 14 mph, with gusts as high as 22 mph.
Saturday
Mostly cloudy, with a high near 21.
Saturday Night
Partly cloudy, with a low around 6.
Sunday
Mostly sunny, with a high near 21.
Sunday Night
Mostly cloudy, with a low around 12.
M.L.King Day
Mostly sunny, with a high near 21.
Monday Night
Mostly clear, with a low around 7.
Tuesday
Mostly sunny, with a high near 28.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
Mostly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Carlinville IL
 39.23°N 89.8°W (Elev. 650 ft)
Last Update:
9:31 pm CST Jan 14, 2026
Forecast Valid:
10pm CST Jan 14, 2026-6pm CST Jan 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation