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.

Overcast and Breezy

37°F

3°C

Humidity 82%
Wind Speed W 24 G 35 mph
Barometer 29.58 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 15 Mar 10:15 pm CDT
Extended Forecast for

2 Miles NNE Bethalto IL

Wind Advisory March 15, 10:24pm until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 15, 10:24pm until March 16, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Tonight

    Low: 21 °F

    Breezy.
    Rain/Snow
    Likely then
    Chance Snow

  • Monday

    Monday: A chance of snow before 1pm, then scattered flurries between 1pm and 2pm. Cloudy, with a high near 27. Breezy, with a northwest wind 24 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 30%.

    High: 27 °F

    Chance Snow
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. Blustery, with a northwest wind 13 to 20 mph.

    Low: 13 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34. Northwest wind 6 to 9 mph becoming southwest in the afternoon.

    High: 34 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 28. Southeast wind 6 to 14 mph, with gusts as high as 22 mph.

    Low: 28 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Tonight
Rain and snow likely before 11pm, then a chance of snow. Cloudy, with a low around 21. Breezy, with a west wind 24 to 26 mph, with gusts as high as 47 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Monday
A chance of snow before 1pm, then scattered flurries between 1pm and 2pm. Cloudy, with a high near 27. Breezy, with a northwest wind 24 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 13. Blustery, with a northwest wind 13 to 20 mph.
Tuesday
Mostly sunny, with a high near 34. Northwest wind 6 to 9 mph becoming southwest in the afternoon.
Tuesday Night
A 40 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 28. Southeast wind 6 to 14 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 42.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Mostly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Bethalto IL
 38.92°N 90.02°W (Elev. 512 ft)
Last Update:
7:30 pm CDT Mar 15, 2026
Forecast Valid:
10pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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