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 Windy

35°F

2°C

Humidity 79%
Wind Speed W 26 G 33 mph
Barometer 29.60 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 15 Mar 11:55 pm CDT
Extended Forecast for

2 Miles WNW Alton IL

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

    NOW until 12:00pm Mon

    Wind Advisory

  • Overnight

    Low: 20 °F

    Chance Snow
    and Blustery

  • Monday

    Monday: A 30 percent chance of snow, mainly before 11am. Cloudy, with a high near 28. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 37 mph.

    High: 28 °F

    Blustery.
    Chance Snow
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 14. Northwest wind 11 to 18 mph, with gusts as high as 26 mph.

    Low: 14 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. Northwest wind 6 to 9 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 steady temperature around 34. Southeast wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 34 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Overnight
A 50 percent chance of snow before 4am. Cloudy, with a low around 20. Blustery, with a northwest wind 23 to 26 mph, with gusts as high as 37 mph.
Monday
A 30 percent chance of snow, mainly before 11am. Cloudy, with a high near 28. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 37 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 14. Northwest wind 11 to 18 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 35. Northwest wind 6 to 9 mph becoming southwest in the afternoon.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a steady temperature around 34. Southeast wind 6 to 13 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Mostly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Alton IL
 38.91°N 90.19°W (Elev. 538 ft)
Last Update:
12:11 am CDT Mar 16, 2026
Forecast Valid:
12am CDT Mar 16, 2026-6pm CDT Mar 22, 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