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

79°F

26°C

Humidity 89%
Wind Speed S 6 mph
Barometer 29.96 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 19 Jul 9:50 pm CDT
Extended Forecast for

Wood River IL

Extreme Heat Warning July 19, 09:56pm until July 24, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 19, 09:56pm until July 24, 07:00pm

    NOW until 7:00pm Thu

    Extreme Heat Warning

  • Tonight

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind 3 to 8 mph. Chance of precipitation is 20%.

    High: 93 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southwest wind 5 to 7 mph becoming northeast in the evening.

    Low: 75 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Heat index values as high as 101. Light and variable wind becoming west around 6 mph in the morning.

    High: 91 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75. Southeast wind 3 to 6 mph.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

Detailed Forecast

Tonight
Partly cloudy, with a low around 76. South wind 3 to 6 mph.
Sunday
A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind 3 to 8 mph. Chance of precipitation is 20%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southwest wind 5 to 7 mph becoming northeast in the evening.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Heat index values as high as 101. Light and variable wind becoming west around 6 mph in the morning.
Monday Night
Partly cloudy, with a low around 75. Southeast wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
Mostly clear, with a low around 77.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.
Friday Night
Partly cloudy, with a low around 76.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
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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:
7:51 pm CDT Jul 19, 2025
Forecast Valid:
9pm CDT Jul 19, 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