Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

23°F

-5°C

Humidity 52%
Wind Speed W 16 G 22 mph
Barometer 30.15 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 16 Mar 11:55 pm CDT
Extended Forecast for

5 Miles E Carlinville IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 12. Northwest wind 14 to 16 mph, with gusts as high as 24 mph.

    Low: 12 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 30. Northwest wind 6 to 11 mph becoming southwest in the afternoon.

    High: 30 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow likely, mainly before 11pm.  Cloudy, with a low around 26. South wind 6 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Snow Likely

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 59. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 59 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38. West wind around 5 mph becoming light and variable.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 12. Northwest wind 14 to 16 mph, with gusts as high as 24 mph.
Tuesday
Increasing clouds, with a high near 30. Northwest wind 6 to 11 mph becoming southwest in the afternoon.
Tuesday Night
Snow likely, mainly before 11pm. Cloudy, with a low around 26. South wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 59. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Mostly cloudy, with a low around 38. West wind around 5 mph becoming light and variable.
Thursday
Sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Carlinville IL
 39.27°N 89.8°W (Elev. 650 ft)
12:11 am CDT Mar 17, 2026
12am CDT Mar 17, 2026-6pm CDT Mar 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database