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.

Rain

39°F

4°C

Humidity 93%
Wind Speed E 7 mph
Barometer 30.07 in
Dewpoint 37°F (3°C)
Visibility 3.00 mi
Wind Chill34°F (1°C)
Last update 3 Mar 6:50 am CST
Extended Forecast for

5 Miles E Carlinville IL

  • Today

    Today: Showers and possibly a thunderstorm. Patchy fog. High near 51. Southeast wind around 6 mph. Chance of precipitation is 100%.

    High: 51 °F

    Showers and
    Patchy Fog

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Patchy fog. Low around 44. East wind around 8 mph. Chance of precipitation is 90%.

    Low: 44 °F

    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before noon, then showers between noon and 3pm, then showers and possibly a thunderstorm after 3pm. Patchy fog before noon. High near 59. East wind 5 to 7 mph becoming south in the afternoon. Chance of precipitation is 90%.

    High: 59 °F

    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 51. South wind 5 to 7 mph. Chance of precipitation is 90%.

    Low: 51 °F

    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before noon, then a chance of showers. Mostly cloudy, with a high near 65. Southwest wind 6 to 11 mph. Chance of precipitation is 70%.

    High: 65 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm before noon, then a chance of showers. Mostly cloudy, with a high near 76. Breezy. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: A chance of showers, then showers and possibly a thunderstorm after midnight. Low around 56. Chance of precipitation is 80%.

    Low: 56 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before noon, then a slight chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely then
    Slight Chance
    T-storms

Detailed Forecast

Today
Showers and possibly a thunderstorm. Patchy fog. High near 51. Southeast wind around 6 mph. Chance of precipitation is 100%.
Tonight
Showers and possibly a thunderstorm. Patchy fog. Low around 44. East wind around 8 mph. Chance of precipitation is 90%.
Wednesday
Showers likely and possibly a thunderstorm before noon, then showers between noon and 3pm, then showers and possibly a thunderstorm after 3pm. Patchy fog before noon. High near 59. East wind 5 to 7 mph becoming south in the afternoon. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 51. South wind 5 to 7 mph. Chance of precipitation is 90%.
Thursday
Showers likely and possibly a thunderstorm before noon, then a chance of showers. Mostly cloudy, with a high near 65. Southwest wind 6 to 11 mph. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 52.
Friday
Showers likely and possibly a thunderstorm before noon, then a chance of showers. Mostly cloudy, with a high near 76. Breezy. Chance of precipitation is 60%.
Friday Night
A chance of showers, then showers and possibly a thunderstorm after midnight. Low around 56. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm before noon, then a slight chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 45.
Monday
A 20 percent chance of showers. Sunny, with a high near 69.
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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:
4:46 am CST Mar 3, 2026
Forecast Valid:
7am CST Mar 3, 2026-6pm CDT Mar 9, 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