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

65°F

18°C

Humidity 93%
Wind Speed Calm
Barometer 30.02 in (1016.2 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 20 Jun 5:53 am CDT
Extended Forecast for

2 Miles WSW Fairview Heights 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 93. Light and variable wind becoming south 6 to 11 mph in the morning.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 76. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Heat index values as high as 110. South wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. South wind 7 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 97. South wind 6 to 10 mph.

    High: 97 °F

    Hot

  • Sunday Night

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

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Monday Night

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

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Sunny, with a high near 95.

    High: 95 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 93. Light and variable wind becoming south 6 to 11 mph in the morning.
Tonight
Mostly clear, with a low around 76. South wind around 10 mph, with gusts as high as 20 mph.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 110. South wind 10 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 76. South wind 7 to 10 mph.
Sunday
Sunny and hot, with a high near 97. South wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 77.
Monday
Sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 77.
Tuesday
A 20 percent chance of showers before 1pm. Sunny, with a high near 95.
Tuesday Night
Mostly clear, 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 Fairview Heights IL
 38.59°N 90.03°W (Elev. 499 ft)
Last Update:
5:37 am CDT Jun 20, 2025
Forecast Valid:
6am 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