Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

29°C

85°F

Humidity 63%
Wind Speed SW 13 km/h
Barometer 1014.2 mb (29.98 in)
Dewpoint 22°C (71°F)
Visibility 16 km
Heat Index32°C (90°F)
Last update 4 Sep 8:54 am CDT
Extended Forecast for

Eureka MO

Extreme Heat Warning September 4, 09:53am until September 5, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 4, 09:53am until September 5, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Today

    High: 37 °C

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 23. Calm wind.

    Low: 23 °C

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 37. Heat index values as high as 42. Calm wind.

    High: 37 °C

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 22. Calm wind.

    Low: 22 °C

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 34. Calm wind becoming northeast 5 to 8 km/h in the afternoon.

    High: 34 °C

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 19.

    Low: 19 °C

    Partly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 33.

    High: 33 °C

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19.

    Low: 19 °C

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 37. Heat index values as high as 41. Calm wind.
Tonight
Partly cloudy, with a low around 23. Calm wind.
Saturday
Sunny and hot, with a high near 37. Heat index values as high as 42. Calm wind.
Saturday Night
Mostly clear, with a low around 22. Calm wind.
Sunday
Sunny, with a high near 34. Calm wind becoming northeast 5 to 8 km/h in the afternoon.
Sunday Night
Partly cloudy, with a low around 19.
Labor Day
Sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Sunny and hot, with a high near 36.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Sunny and hot, with a high near 37.
Wednesday Night
Mostly clear, with a low around 23.
Thursday
A 20 percent chance of showers. Sunny, with a high near 34.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Eureka MO
 38.5°N 90.66°W (Elev. 597 m)
9:26 am CDT Sep 4, 2026
9am CDT Sep 4, 2026-6pm CDT Sep 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database