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.

Fair

74°F

23°C

Humidity 81%
Wind Speed NA
Barometer 29.98 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 13 Sep 11:35 pm CDT
Extended Forecast for

Edwardsville IL

  • Overnight

    Overnight: Mostly clear, with a low around 71. Southwest wind 3 to 5 mph.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 98. Calm wind becoming northwest around 6 mph in the morning.

    High: 98 °F

    Hot

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 70. North wind around 6 mph becoming east in the evening.

    Low: 70 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 94. East wind 5 to 7 mph.

    High: 94 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 71. Southwest wind 3 to 5 mph.
Sunday
Mostly sunny and hot, with a high near 98. Calm wind becoming northwest around 6 mph in the morning.
Sunday Night
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 70. North wind around 6 mph becoming east in the evening.
Monday
Mostly sunny, with a high near 94. East wind 5 to 7 mph.
Monday Night
Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 93.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 20%.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Friday Night
A 20 percent chance of showers. Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 84.
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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:
10:51 pm CDT Sep 13, 2025
Forecast Valid:
12am CDT Sep 14, 2025-6pm CDT Sep 20, 2025
 
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