National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

A Few Clouds

90°F

32°C

Humidity 50%
Wind Speed Vrbl 3 mph
Barometer 30.01 in (1015.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 20 Jun 1:53 pm CDT
Extended Forecast for

2 Miles WSW Shiloh IL

Extreme Heat Warning June 21, 12:00pm until June 24, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. South wind 8 to 11 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 76. South wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Heat index values as high as 109. Southwest wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 74. South wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 74 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 96. Southwest wind 7 to 10 mph.

    High: 96 °F

    Sunny

  • Sunday Night

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

    Low: 76 °F

    Mostly Clear

  • Monday

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

    High: 97 °F

    Hot

  • Monday Night

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

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 91. South wind 8 to 11 mph.
Tonight
Clear, with a low around 76. South wind 8 to 11 mph, with gusts as high as 20 mph.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 109. Southwest wind 9 to 16 mph, with gusts as high as 25 mph.
Saturday Night
Clear, with a low around 74. South wind 7 to 13 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 96. Southwest wind 7 to 10 mph.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny and hot, with a high near 97.
Monday Night
Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Wednesday Night
Partly cloudy, with a low around 76.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Shiloh IL
 38.55°N 89.95°W (Elev. 541 ft)
Last Update:
2:21 pm CDT Jun 20, 2025
Forecast Valid:
2pm CDT Jun 20, 2025-6pm CDT Jun 26, 2025
 
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