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 and Breezy

64°F

18°C

Humidity 64%
Wind Speed S 21 G 33 mph
Barometer 29.46 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Mar 9:45 am CDT
Extended Forecast for

3 Miles SSE Carlinville IL

Wind Advisory until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until March 16, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Today

    High: 67 °F

    Breezy.
    Isolated
    Showers then
    T-storms

  • Tonight

    Tonight: Rain before 10pm, then a chance of rain and snow between 10pm and 11pm, then a chance of snow after 11pm. Low around 20. Blustery, with a northwest wind 24 to 29 mph, with gusts as high as 46 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Rain/Snow and
    Breezy then
    Chance Snow
    and Blustery

  • Monday

    Monday: A chance of snow before 1pm, then scattered flurries between 1pm and 3pm. Cloudy, with a high near 25. Blustery, with a northwest wind 23 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 30%.

    High: 25 °F

    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 28 mph.

    Low: 10 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33. Northwest wind 6 to 8 mph becoming southwest in the afternoon.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow, mainly after 1am. Mostly cloudy, with a steady temperature around 31.

    Low: 31 °F

    Chance Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Today
Isolated showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 67. Breezy, with a south wind 24 to 29 mph, with gusts as high as 45 mph. Chance of precipitation is 80%.
Tonight
Rain before 10pm, then a chance of rain and snow between 10pm and 11pm, then a chance of snow after 11pm. Low around 20. Blustery, with a northwest wind 24 to 29 mph, with gusts as high as 46 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
A chance of snow before 1pm, then scattered flurries between 1pm and 3pm. Cloudy, with a high near 25. Blustery, with a northwest wind 23 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 10. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny, with a high near 33. Northwest wind 6 to 8 mph becoming southwest in the afternoon.
Tuesday Night
A 40 percent chance of snow, mainly after 1am. Mostly cloudy, with a steady temperature around 31.
Wednesday
Partly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 71.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Carlinville IL
 39.25°N 89.86°W (Elev. 551 ft)
Last Update:
9:21 am CDT Mar 15, 2026
Forecast Valid:
10am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation