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

Flooding Possible in the Southwest U.S.; Coastal Storm to Impact the East

Heavy to excessive rainfall is expected today into Wednesday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. A strong coastal storm will develop off the Mid-Atlantic coast Wednesday, intensifying toward southern New England this weekend. Significant coastal flooding, strong rip currents, and beach erosion from high surf expected. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

64°F

18°C

Humidity 78%
Wind Speed NE 13 mph
Barometer 30.20 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 22 Sep 10:50 am CDT
Extended Forecast for

Edwardsville IL

  • Today

    Today: Mostly cloudy, with a high near 75. Northeast wind around 10 mph.

    High: 75 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. Northeast wind 5 to 10 mph.

    Low: 57 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 76. North wind 6 to 10 mph.

    High: 76 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. Northeast wind 3 to 8 mph.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77. Northeast wind 3 to 6 mph.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 75. Northeast wind around 10 mph.
Tonight
Mostly cloudy, with a low around 57. Northeast wind 5 to 10 mph.
Wednesday
Mostly cloudy, with a high near 76. North wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 57. Northeast wind 3 to 8 mph.
Thursday
Mostly sunny, with a high near 77. Northeast wind 3 to 6 mph.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Partly sunny, with a high near 76.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Edwardsville IL
 38.81°N 89.97°W (Elev. 499 ft)
Last Update:
9:41 am CDT Sep 22, 2026
Forecast Valid:
11am CDT Sep 22, 2026-6pm CDT Sep 28, 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