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

59°F

15°C

Humidity 36%
Wind Speed W 15 G 23 mph
Barometer 30.24 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 19 Apr 11:45 am CDT
Extended Forecast for

5 Miles E Carlinville IL

  • This Afternoon

    This Afternoon: Increasing clouds, with a high near 62. West wind 16 to 18 mph, with gusts as high as 26 mph.

    High: 62 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 35. North wind 5 to 10 mph becoming light and variable after midnight.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 63. Light and variable wind becoming south 5 to 7 mph in the morning.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. Southeast wind 7 to 10 mph.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Southwest wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

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

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Breezy.

    High: 81 °F

    Sunny then
    Mostly Sunny
    and Breezy

Detailed Forecast

This Afternoon
Increasing clouds, with a high near 62. West wind 16 to 18 mph, with gusts as high as 26 mph.
Tonight
Partly cloudy, with a low around 35. North wind 5 to 10 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 63. Light and variable wind becoming south 5 to 7 mph in the morning.
Monday Night
Mostly clear, with a low around 47. Southeast wind 7 to 10 mph.
Tuesday
Mostly sunny, with a high near 77. Southwest wind 10 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 81. Breezy.
Thursday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Friday
Showers and possibly a thunderstorm. High near 72. Chance of precipitation is 80%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Carlinville IL
 39.27°N 89.8°W (Elev. 650 ft)
Last Update:
11:51 am CDT Apr 19, 2026
Forecast Valid:
12pm CDT Apr 19, 2026-6pm CDT Apr 25, 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