Hazardous Weather Conditions
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 Index | 32°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
NOW until 8:00pm Sat

Extreme Heat Warning
Today

High: 37 °C
Hot
Tonight

Low: 23 °C
Partly Cloudy
Saturday

High: 37 °C
Hot
Saturday Night

Low: 22 °C
Mostly Clear
Sunday

High: 34 °C
Sunny
Sunday Night

Low: 19 °C
Partly Cloudy
Labor Day

High: 33 °C
Sunny
Monday Night

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Eureka MO
38.5°N 90.66°W (Elev. 597 m)
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



