Hail HistoryHome › Missouri › St. Charles County
Hail history for St. Charles County, MO
223 hail reports in St. Charles County since 2006 on 90 days. The largest stones measured 4 in (grapefruit) on May 11, 2016.
Cities in St. Charles County
- O'Fallon
75 hail days - Saint Charles
87 hail days - Saint Peters
72 hail days - Wentzville
62 hail days - Lake Saint Louis
70 hail days - Dardenne Prairie
74 hail days - Weldon Spring
73 hail days - Cottleville
71 hail days
Recent hail in St. Charles County
| Date | Hail size | Where |
|---|---|---|
| Sep 17, 2026 | 1 in quarter | Saint Paul 1 hail report |
| Jun 25, 2026 | 0.75 in penny | St Peters 1 hail report |
| Apr 27, 2026 | 1.25 in half dollar | O Fallon, Fort Zumwalt, Lake St Louis 6 hail reports |
| Apr 17, 2026 | 1 in quarter | Defiance, Cottleville, Harvester 12 hail reports |
| May 16, 2025 | 2.5 in tennis ball | Cottleville, Weldon, Defiance 30 hail reports |
| Apr 30, 2025 | 1 in quarter | Weldon Spg, Dardenne 2 hail reports |
| Apr 10, 2025 | 1 in quarter | Fort Zumwalt, St Peters 2 hail reports |
| Mar 30, 2025 | 1 in quarter | Orchard Farm 1 hail report |
| Mar 14, 2025 | 1.25 in half dollar | Harvester 1 hail report |
One row per day: the largest hail reported in the county that day, the places and the number of reports.
Hail days in St. Charles County by year
When hail season peaks in St. Charles County
Damaging thunderstorm winds in St. Charles County
201 reports of damaging thunderstorm wind in St. Charles County since 2006, on 118 days. The strongest measured gust was 81 mph on Jul 3, 2011.
| Date | Strongest gust | Where |
|---|---|---|
| Sep 17, 2026 | damage reported | Saint Paul 1 wind report |
| Aug 12, 2026 | damage reported | O'Fallon, Saint Paul 3 wind reports |
| Jul 10, 2026 | damage reported | Foristell, Kampville 2 wind reports |
| Jul 4, 2026 | damage reported | Weldon Spring, Harvester 4 wind reports |
| Jun 25, 2026 | 60 mph, estimated | Kampville 1 wind report |
| Apr 17, 2026 | 75 mph, estimated | Cappeln, Harvester 2 wind reports |
| Mar 11, 2026 | 75 mph, estimated | Orchard Farm 1 wind report |
| Jul 6, 2025 | 75 mph, estimated | St Peters, Cottleville 2 wind reports |
| Jun 27, 2025 | 58 mph, estimated | Harvester 1 wind report |
| Jun 17, 2025 | 58 mph, estimated | St Charles Airport 1 wind report |
Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.
Filing a roof or car hail claim?
Insurers ask for the date of loss. The dates on this page are when hail was reported near St. Charles County; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.
Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then).