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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

62°F

17°C

Humidity 94%
Wind Speed SE 8 mph
Barometer 29.85 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 15 Apr 11:55 pm CDT
Extended Forecast for

5 Miles E Carlinville IL

  • Overnight

    Overnight: Showers and possibly a thunderstorm before 2am, then scattered showers and thunderstorms, mainly between 2am and 4am. Low around 60. Southwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 80. West wind 8 to 10 mph.

    High: 80 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. South wind 3 to 6 mph.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 47. South wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    Low: 47 °F

    Showers

  • Saturday

    Saturday: A 40 percent chance of showers. Mostly sunny, with a high near 59.

    High: 59 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

Detailed Forecast

Overnight
Showers and possibly a thunderstorm before 2am, then scattered showers and thunderstorms, mainly between 2am and 4am. Low around 60. Southwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 80. West wind 8 to 10 mph.
Thursday Night
Mostly clear, with a low around 56. South wind 3 to 6 mph.
Friday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 47. South wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Saturday
A 40 percent chance of showers. Mostly sunny, with a high near 59.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 60.
Sunday Night
Clear, with a low around 38.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 75.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.
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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 pm CDT Apr 15, 2026
Forecast Valid:
12am CDT Apr 16, 2026-6pm CDT Apr 22, 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