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.

Mostly Cloudy

70°F

21°C

Humidity 64%
Wind Speed S 8 mph
Barometer 30.20 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 11 Apr 6:50 pm CDT
Extended Forecast for

5 Miles E Carlinville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Southeast wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 4pm. Partly sunny, with a high near 80. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 80 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 61. Southwest wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. South wind 13 to 17 mph, with gusts as high as 25 mph.

    High: 83 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65. South wind around 15 mph, with gusts as high as 24 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 58. Southeast wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday
A 30 percent chance of showers, mainly after 4pm. Partly sunny, with a high near 80. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 61. Southwest wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Monday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. South wind 13 to 17 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 65. South wind around 15 mph, with gusts as high as 24 mph.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Thursday Night
A 20 percent chance of showers. Mostly clear, with a low around 57.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 66.
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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:
6:11 pm CDT Apr 11, 2026
Forecast Valid:
7pm CDT Apr 11, 2026-6pm CDT Apr 18, 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