National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

27°F

-3°C

Humidity 50%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 28 Jan 7:50 pm CST
Extended Forecast for

Edwardsville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 12. Calm wind becoming northeast around 5 mph.

    Low: 12 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 22. Northeast wind 5 to 7 mph.

    High: 22 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 7. North wind 3 to 7 mph.

    Low: 7 °F

    Chance Snow

  • Friday

    Friday: Partly sunny and cold, with a high near 18. North wind 6 to 10 mph.

    High: 18 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around 4. North wind 8 to 10 mph.

    Low: 4 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 17.

    High: 17 °F

    Cold

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 12. Calm wind becoming northeast around 5 mph.
Thursday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 22. Northeast wind 5 to 7 mph.
Thursday Night
A 30 percent chance of snow, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 7. North wind 3 to 7 mph.
Friday
Partly sunny and cold, with a high near 18. North wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around 4. North wind 8 to 10 mph.
Saturday
Mostly sunny and cold, with a high near 17.
Saturday Night
Partly cloudy, with a low around 2.
Sunday
Partly sunny, with a high near 26.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 14.
Monday
Partly sunny, with a high near 34.
Monday Night
Mostly cloudy, with a low around 20.
Tuesday
Mostly cloudy, with a high near 36.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Edwardsville IL
 38.81°N 89.97°W (Elev. 499 ft)
Last Update:
7:56 pm CST Jan 28, 2026
Forecast Valid:
8pm CST Jan 28, 2026-6pm CST Feb 4, 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