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.

Mostly Cloudy

73°F

23°C

Humidity 57%
Wind Speed E 5 mph
Barometer 30.17 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 22 Sep 2:45 pm CDT
Extended Forecast for

Edwardsville IL

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Northeast wind 6 to 10 mph.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 75. North wind 6 to 10 mph.

    High: 75 °F

    Mostly Cloudy

  • Wednesday Night

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

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 78. Northeast wind 5 to 7 mph.

    High: 78 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. Northeast wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

  • Friday Night

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

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 75.

    High: 75 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 57. Northeast wind 6 to 10 mph.
Wednesday
Mostly cloudy, with a high near 75. North wind 6 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 57. Northeast wind 3 to 8 mph.
Thursday
Partly sunny, with a high near 78. Northeast wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 59. Northeast wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 79.
Friday Night
Mostly cloudy, with a low around 55.
Saturday
Mostly cloudy, with a high near 75.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 83.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 61.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Edwardsville IL
 38.79°N 89.97°W (Elev. 558 ft)
Last Update:
2:41 pm CDT Sep 22, 2026
Forecast Valid:
3pm CDT Sep 22, 2026-6pm CDT Sep 29, 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