Hazardous Weather Conditions
Current conditions at
St. Louis, Spirit Of St. Louis Airport (KSUS)
Lat: 38.66°NLon: 90.66°WElev: 463ft.
Fog/Mist
36°F
2°C
| Humidity | 100% |
| Wind Speed | Calm |
| Barometer | 30.47 in (1032.1 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 2.50 mi |
| Last update | 18 Oct 5:54 am CDT |
Extended Forecast for
Ballwin MO
Frost Advisory until October 18, 09:00am
NOW until 9:00am Sun
Frost Advisory
Today
High: 69 °F
Patchy Fog
then SunnyTonight
Low: 41 °F
Clear
Monday
High: 71 °F
Sunny
Monday Night
Low: 43 °F
Mostly Clear
Tuesday
High: 73 °F
Sunny
Tuesday Night
Low: 45 °F
Mostly Clear
Wednesday
High: 76 °F
Sunny
Wednesday Night
Low: 48 °F
Mostly Clear
Detailed Forecast
Today
Patchy fog before 8am. Otherwise, sunny, with a high near 69. Calm wind becoming south around 5 mph in the morning.
Tonight
Clear, with a low around 41. Light southeast wind.
Monday
Sunny, with a high near 71. Calm wind.
Monday Night
Mostly clear, with a low around 43. Calm wind.
Tuesday
Sunny, with a high near 73. Calm wind.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 50.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 51.
Saturday
Mostly sunny, with a high near 79.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Ballwin MO
38.61°N 90.54°W (Elev. 597 ft)
38.61°N 90.54°W (Elev. 597 ft)
6:26 am CDT Oct 18, 2026
6am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
