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

20°F

-7°C

Humidity 59%
Wind Speed NW 8 mph
Barometer 30.11 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 15 Jan 3:35 am CST
Extended Forecast for

6 Miles SE Carlinville IL

  • Overnight

    Overnight: Clear, with a low around 15. Northwest wind 9 to 11 mph.

    Low: 15 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 31. Northwest wind 7 to 9 mph becoming south in the afternoon.

    High: 31 °F

    Sunny

  • Thursday Night

    Thursday Night: Snow before 2am, then scattered flurries after 5am. Low around 26. South wind 8 to 13 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Snow then
    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 41. West wind 11 to 17 mph, with gusts as high as 25 mph.

    High: 41 °F

    Partly Sunny

  • Friday Night

    Friday Night: Scattered snow showers. Mostly cloudy, with a low around 18. West wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 18 °F

    Scattered
    Snow Showers

  • Saturday

    Saturday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 15. Northwest wind 9 to 11 mph.
Thursday
Sunny, with a high near 31. Northwest wind 7 to 9 mph becoming south in the afternoon.
Thursday Night
Snow before 2am, then scattered flurries after 5am. Low around 26. South wind 8 to 13 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday
Partly sunny, with a high near 41. West wind 11 to 17 mph, with gusts as high as 25 mph.
Friday Night
Scattered snow showers. Mostly cloudy, with a low around 18. West wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 22.
Saturday Night
Partly cloudy, with a low around 8.
Sunday
Mostly sunny, with a high near 23.
Sunday Night
Partly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 21.
Monday Night
Mostly clear, with a low around 6.
Tuesday
Sunny, with a high near 26.
Tuesday Night
Partly cloudy, with a low around 16.
Wednesday
Mostly sunny, with a high near 39.
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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:
3:16 am CST Jan 15, 2026
Forecast Valid:
3am CST Jan 15, 2026-6pm CST Jan 21, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation