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.

Fair

86°F

30°C

Humidity 51%
Wind Speed SW 9 G 20 mph
Barometer 30.02 in (1016.1 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 20 Jun 10:53 am CDT
Extended Forecast for

2 Miles SSW Summerfield IL

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

  • Today

    Today: Mostly sunny, with a high near 89. South wind 9 to 11 mph.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: Clear, with a low around 75. South wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 75 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 95. Heat index values as high as 107. Southwest wind 9 to 16 mph, with gusts as high as 24 mph.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 74. South wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 74 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 95. Southwest wind 7 to 11 mph.

    High: 95 °F

    Sunny

  • Sunday Night

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

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • 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. Sunny, with a high near 93.

    High: 93 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 89. South wind 9 to 11 mph.
Tonight
Clear, with a low around 75. South wind 8 to 10 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 95. Heat index values as high as 107. Southwest wind 9 to 16 mph, with gusts as high as 24 mph.
Saturday Night
Clear, with a low around 74. South wind 7 to 11 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 95. Southwest wind 7 to 11 mph.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Wednesday Night
Partly cloudy, with a low around 75.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Summerfield IL
 38.56°N 89.75°W (Elev. 472 ft)
Last Update:
11:37 am CDT Jun 20, 2025
Forecast Valid:
11am CDT Jun 20, 2025-6pm CDT Jun 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