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.

Partly Cloudy

90°F

32°C

Humidity 67%
Wind Speed S 8 mph
Barometer 29.96 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index104°F (40°C)
Last update 20 Jul 1:50 pm CDT
Extended Forecast for

Wood River IL

Flood Watch July 20, 05:00pm until July 21, 01:00pm
Extreme Heat Warning July 20, 02:45pm until July 24, 07:00pm
Click here for hazard details and duration
Flood Watch
Extreme Heat Warning
  •  
    Extreme Heat Warning July 20, 02:45pm until July 24, 07:00pm

    NOW until 7:00pm Thu

    Extreme Heat Warning

  • This Afternoon

    High: 93 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Chance
    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 90. Heat index values as high as 100. Light and variable wind becoming north around 6 mph in the morning.

    High: 90 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. East wind 3 to 6 mph.

    Low: 75 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 95. South wind 3 to 6 mph.

    High: 95 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 93. Heat index values as high as 107. Southwest wind around 8 mph.
Tonight
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.
Monday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 90. Heat index values as high as 100. Light and variable wind becoming north around 6 mph in the morning.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. East wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 95. South wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Sunny and hot, with a high near 97.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Mostly clear, with a low around 77.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wood River IL
 38.86°N 90.08°W (Elev. 436 ft)
Last Update:
2:21 pm CDT Jul 20, 2025
Forecast Valid:
2pm CDT Jul 20, 2025-6pm CDT Jul 26, 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