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.

Partly Cloudy

70°F

21°C

Humidity 29%
Wind Speed S 18 G 24 mph
Barometer 30.08 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 29 Mar 3:50 pm CDT
Extended Forecast for

5 Miles E Carlinville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. South wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 81. Southwest wind 13 to 18 mph, with gusts as high as 26 mph.

    High: 81 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. South wind 14 to 16 mph, with gusts as high as 28 mph.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain, then a chance of rain and thunderstorms after 10am. Partly sunny, with a high near 83. Breezy, with a south wind 16 to 23 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.

    High: 83 °F

    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 51. Southwest wind 11 to 13 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%.

    Low: 51 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 62. Chance of precipitation is 80%.

    High: 62 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm. Low around 47. Chance of precipitation is 90%.

    Low: 47 °F

    Rain

  • Thursday

    Thursday: Rain. High near 64. Chance of precipitation is 80%.

    High: 64 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.

    Low: 45 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 54. South wind 11 to 14 mph, with gusts as high as 24 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 81. Southwest wind 13 to 18 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 62. South wind 14 to 16 mph, with gusts as high as 28 mph.
Tuesday
A slight chance of rain, then a chance of rain and thunderstorms after 10am. Partly sunny, with a high near 83. Breezy, with a south wind 16 to 23 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 51. Southwest wind 11 to 13 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm. High near 62. Chance of precipitation is 80%.
Wednesday Night
Rain and possibly a thunderstorm. Low around 47. Chance of precipitation is 90%.
Thursday
Rain. High near 64. Chance of precipitation is 80%.
Thursday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 71.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 54.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. Breezy. Chance of precipitation is 70%.
Saturday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 58. Breezy.
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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:
2:56 pm CDT Mar 29, 2026
Forecast Valid:
4pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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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