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.

Thunderstorm Rain in Vicinity

60°F

16°C

Humidity 94%
Wind Speed S 9 mph
Barometer 29.87 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 7 Mar 4:35 am CST
Extended Forecast for

5 Miles SSW Carlinville IL

  • Overnight

    Overnight: Rain and possibly a thunderstorm. Low around 59. Southwest wind around 11 mph, with gusts as high as 28 mph. Chance of precipitation is 100%.

    Low: 59 °F

    Rain

  • Saturday

    Saturday: Rain, mainly before 8am. Temperature rising to near 63 by 9am, then falling to around 52 during the remainder of the day. Southwest wind 13 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%.

    High: 63 °F⇓

    Rain then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35. Northwest wind 6 to 11 mph becoming light west.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 63. Southwest wind 5 to 11 mph.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 43. South wind 7 to 9 mph.

    Low: 43 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain after midnight. Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear
    then Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain, then rain and possibly a thunderstorm after noon. High near 77. Chance of precipitation is 80%.

    High: 77 °F

    Chance Rain
    then Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 48. Breezy. Chance of precipitation is 90%.

    Low: 48 °F

    Rain and
    Breezy

Detailed Forecast

Overnight
Rain and possibly a thunderstorm. Low around 59. Southwest wind around 11 mph, with gusts as high as 28 mph. Chance of precipitation is 100%.
Saturday
Rain, mainly before 8am. Temperature rising to near 63 by 9am, then falling to around 52 during the remainder of the day. Southwest wind 13 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%.
Saturday Night
Partly cloudy, with a low around 35. Northwest wind 6 to 11 mph becoming light west.
Sunday
Sunny, with a high near 63. Southwest wind 5 to 11 mph.
Sunday Night
Clear, with a low around 43. South wind 7 to 9 mph.
Monday
Sunny, with a high near 75.
Monday Night
A 30 percent chance of rain after midnight. Mostly clear, with a low around 56.
Tuesday
A chance of rain, then rain and possibly a thunderstorm after noon. High near 77. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 48. Breezy. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm before noon, then a chance of rain. High near 61. Breezy. Chance of precipitation is 80%.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Mostly cloudy, with a low around 38.
Friday
Partly sunny, with a high near 63. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Carlinville IL
 39.21°N 89.89°W (Elev. 610 ft)
Last Update:
3:31 am CST Mar 7, 2026
Forecast Valid:
4am CST Mar 7, 2026-6pm CDT Mar 13, 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