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.

Mostly Cloudy

32°F

0°C

Humidity 75%
Wind Speed NE 10 mph
Barometer 30.11 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 3 Feb 6:50 am CST
Extended Forecast for

2 Miles WSW Alton IL

  • Today

    Today: A slight chance of drizzle, snow, and freezing rain before 9am, then a slight chance of drizzle or freezing rain between 9am and 10am. Mostly cloudy, with a high near 34. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 34 °F

    Slight Chance
    Wintry Mix
    then Partly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 18. North wind 5 to 7 mph.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31. North wind 3 to 7 mph.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 16. Light and variable wind.

    Low: 16 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 40. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 40 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

Detailed Forecast

Today
A slight chance of drizzle, snow, and freezing rain before 9am, then a slight chance of drizzle or freezing rain between 9am and 10am. Mostly cloudy, with a high near 34. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 18. North wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 31. North wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 16. Light and variable wind.
Thursday
Partly sunny, with a high near 40. Calm wind becoming southwest 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 31.
Friday
Mostly sunny, with a high near 49.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 42.
Basemap Options
Click map to change the forecast location
Loading map...
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:
6:56 am CST Feb 3, 2026
Forecast Valid:
7am CST Feb 3, 2026-6pm CST Feb 9, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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