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

88°F

31°C

Humidity 79%
Wind Speed W 5 mph
Barometer 29.85 in
Dewpoint 81°F (27°C)
Visibility 10.00 mi
Heat Index106°F (41°C)
Last update 26 Jul 7:50 pm CDT
Extended Forecast for

Staunton IL

Extreme Heat Warning July 26, 08:03pm until July 27, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 26, 08:03pm until July 27, 09:00pm

    NOW until 9:00pm Mon

    Extreme Heat Warning

  • Tonight

    Low: 75 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 94. Heat index values as high as 110. Light south wind increasing to 5 to 10 mph in the morning.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. Southwest wind 5 to 7 mph becoming northwest after midnight.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. North wind 6 to 11 mph.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. North wind 5 to 9 mph becoming light northeast in the evening.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 75. Light and variable wind.
Monday
Sunny, with a high near 94. Heat index values as high as 110. Light south wind increasing to 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 76. Southwest wind 5 to 7 mph becoming northwest after midnight.
Tuesday
Sunny, with a high near 89. North wind 6 to 11 mph.
Tuesday Night
Mostly clear, with a low around 67. North wind 5 to 9 mph becoming light northeast in the evening.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
Sunny, with a high near 87.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 68.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 82.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Staunton IL
 39.01°N 89.79°W (Elev. 627 ft)
Last Update:
6:56 pm CDT Jul 26, 2026
Forecast Valid:
8pm CDT Jul 26, 2026-6pm CDT Aug 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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