NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment
After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >
Hazardous Weather Conditions
Current conditions at
St. Louis, Spirit Of St. Louis Airport (KSUS)
Lat: 38.66°NLon: 90.66°WElev: 463ft.
Mostly Cloudy
69°F
21°C
| Humidity | 66% |
| Wind Speed | E 12 mph |
| Barometer | 30.04 in (1017.1 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 21 May 5:54 pm CDT |
Extended Forecast for
Ballwin MO
Tonight
Low: 58 °F
Increasing
CloudsFriday
High: 69 °F
Scattered
ShowersFriday Night
Low: 58 °F
Scattered
ShowersSaturday
High: 79 °F
Partly Sunny
Saturday Night
Low: 61 °F
Chance
ShowersSunday
High: 80 °F
Chance
Showers then
Chance
T-stormsSunday Night
Low: 61 °F
Mostly Cloudy
Memorial Day
High: 82 °F
Slight Chance
T-stormsMonday Night
Low: 64 °F
Slight Chance
T-storms
Detailed Forecast
Tonight
Increasing clouds, with a low around 58. East wind 5 to 8 mph.
Friday
Scattered showers, mainly after 11am. Cloudy, with a high near 69. East wind around 6 mph. Chance of precipitation is 50%.
Friday Night
Scattered showers, mainly after midnight. Mostly cloudy, with a low around 58. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 79. Light northwest wind.
Saturday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 61. Calm wind.
Sunday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.
Sunday Night
Mostly cloudy, with a low around 61.
Memorial Day
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Additional Forecasts and Information
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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)
2:36 pm CDT May 21, 2026
6pm CDT May 21, 2026-6pm CDT May 28, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
