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Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast and Breezy

66°F

19°C

Humidity 68%
Wind Speed S 21 G 35 mph
Barometer 29.33 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Mar 3:50 pm CDT
Extended Forecast for

2 Miles WSW Alton IL

Tornado Watch March 15, 04:48pm until March 15, 08:00pm
Wind Advisory March 15, 04:48pm until March 16, 12:00pm
Click here for hazard details and duration
Tornado Watch
Wind Advisory
  •  
    Tornado Watch March 15, 04:48pm until March 15, 08:00pm
    Wind Advisory March 15, 04:48pm until March 16, 12:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 61 °F

    Severe
    Thunderstorms
    and Breezy

  • 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 22. Breezy, with a west wind 22 to 25 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Breezy.
    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: A slight chance of snow before noon, then scattered flurries between noon and 1pm. Cloudy, with a high near 28. Blustery, with a west wind 22 to 25 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.

    High: 28 °F

    Slight Chance
    Snow and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. Northwest wind 10 to 18 mph, with gusts as high as 26 mph.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. Northwest wind 6 to 8 mph becoming southwest in the afternoon.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. Some of the storms could be severe. Steady temperature around 61. Breezy, with a southwest wind around 24 mph, with gusts as high as 37 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 22. Breezy, with a west wind 22 to 25 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
A slight chance of snow before noon, then scattered flurries between noon and 1pm. Cloudy, with a high near 28. Blustery, with a west wind 22 to 25 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 13. Northwest wind 10 to 18 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 35. Northwest wind 6 to 8 mph becoming southwest in the afternoon.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 30.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Alton IL
 38.88°N 90.19°W (Elev. 407 ft)
Last Update:
4:26 pm CDT Mar 15, 2026
Forecast Valid:
4pm 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation