Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

28°F

-2°C

Humidity 78%
Wind Speed N 5 mph
Barometer 30.27 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 1 Mar 3:35 am CST
Extended Forecast for

5 Miles E Carlinville IL

Winter Weather Advisory March 1, 06:00pm until March 2, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Overnight

    Overnight: Partly cloudy, with a low around 26. Northeast wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 45. Northeast wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain, snow, and sleet before 3am, then a chance of rain, snow, and freezing rain between 3am and 4am, then a chance of rain after 4am.  Low around 32. East wind around 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. Little or no ice accumulation expected.  New snow and sleet accumulation of around an inch possible.

    Low: 32 °F

    Wintry Mix

  • Monday

    Monday: A chance of rain, mainly before 9am, then a slight chance of showers after noon.  Cloudy, with a high near 44. East wind 8 to 10 mph.  Chance of precipitation is 30%.

    High: 44 °F

    Chance Rain

  • Monday Night

    Monday Night: Showers, mainly after midnight.  Low around 39. Southeast wind around 7 mph.  Chance of precipitation is 80%.

    Low: 39 °F

    Chance
    Showers then
    Showers

  • Tuesday

    Tuesday: Showers.  High near 59. Chance of precipitation is 90%.

    High: 59 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers, with thunderstorms also possible after midnight.  Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm.  High near 65. Chance of precipitation is 80%.

    High: 65 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 26. Northeast wind 11 to 13 mph, with gusts as high as 21 mph.
Sunday
Mostly cloudy, with a high near 45. Northeast wind 11 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Rain, snow, and sleet before 3am, then a chance of rain, snow, and freezing rain between 3am and 4am, then a chance of rain after 4am. Low around 32. East wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow and sleet accumulation of around an inch possible.
Monday
A chance of rain, mainly before 9am, then a slight chance of showers after noon. Cloudy, with a high near 44. East wind 8 to 10 mph. Chance of precipitation is 30%.
Monday Night
Showers, mainly after midnight. Low around 39. Southeast wind around 7 mph. Chance of precipitation is 80%.
Tuesday
Showers. High near 59. Chance of precipitation is 90%.
Tuesday Night
Showers, with thunderstorms also possible after midnight. Low around 51. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 65. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Saturday
Showers likely. Cloudy, with a high near 61. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Carlinville IL
 39.27°N 89.8°W (Elev. 650 ft)
1:36 am CST Mar 1, 2026
3am CST Mar 1, 2026-6pm CST Mar 7, 2026
 
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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