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.

Overcast

41°F

5°C

Humidity 70%
Wind Speed NE 12 mph
Barometer 30.43 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 7 Apr 7:50 am CDT
Extended Forecast for

5 Miles E Carlinville IL

  • Today

    Today: A 20 percent chance of rain before noon. Cloudy, then gradually becoming mostly sunny, with a high near 51. East wind 9 to 13 mph.

    High: 51 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 37. East wind around 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 70. Breezy, with a southeast wind 11 to 20 mph.

    High: 70 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. South wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 75. Southwest wind 10 to 13 mph. Chance of precipitation is 20%.

    High: 75 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 7pm, then a chance of showers after 1am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 70. Chance of precipitation is 30%.

    High: 70 °F

    Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of rain before noon. Cloudy, then gradually becoming mostly sunny, with a high near 51. East wind 9 to 13 mph.
Tonight
Partly cloudy, with a low around 37. East wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 70. Breezy, with a southeast wind 11 to 20 mph.
Wednesday Night
Mostly clear, with a low around 51. South wind 11 to 14 mph, with gusts as high as 22 mph.
Thursday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 75. Southwest wind 10 to 13 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of thunderstorms before 7pm, then a chance of showers after 1am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 70. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Carlinville IL
 39.27°N 89.8°W (Elev. 650 ft)
Last Update:
5:21 am CDT Apr 7, 2026
Forecast Valid:
9am CDT Apr 7, 2026-6pm CDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation