Lekin › Missouri › St. Charles County › O'Fallon

Hail history for O'Fallon, MO

Haili ijiin 10 mileSep 17, 20261.00 in (25-sent coin)

Ane haili, 12 mwwoon ijiin4

Haili ane pwon ijiin 20063.00 in (tea cup)May 13, 2023

Ane haili ijiin 200675

Ane haili 1 inch o pwon48

Tornado ijiin 10 mile9

Wind reports within 10 miles134

Hail has been reported within 10 miles of O'Fallon on 75 days since 2006. The largest stones measured 3.00 in (tea cup) on May 13, 2023. Hail is most common here in April and May.

O'Fallon ranks #61 for hail days among the 1,399 U.S. cities of 25,000 to 100,000 people. Ara ranking →

Recent hail near O'Fallon

Date	Size hail	Where	Source
Sep 17, 2026	1.00 in 25-sent coin	Saint Paul 1 hail report · closest 3 mi from O'Fallon	NWS storm report (preliminary)
Jun 25, 2026	0.75 in 1-sent coin	St Peters 1 hail report · closest 6 mi from O'Fallon	NOAA Storm Events
Apr 27, 2026	1.25 in 50-sent coin	O Fallon, Fort Zumwalt, Vandalia Airport 7 hail reports · closest near the center of O'Fallon	NOAA Storm Events
Apr 17, 2026	1.00 in 25-sent coin	Cottleville, Harvester, St Charles 9 hail reports · closest 4 mi from O'Fallon	NOAA Storm Events
May 16, 2025	2.50 in tennis ball	Cottleville, Weldon, Weldon Spg 27 hail reports · closest 1 mi from O'Fallon	NOAA Storm Events
Apr 30, 2025	1.00 in 25-sent coin	Weldon Spg, Dardenne 2 hail reports · closest 3 mi from O'Fallon	NOAA Storm Events
Apr 10, 2025	1.00 in 25-sent coin	Fort Zumwalt, St Peters 2 hail reports · closest 1 mi from O'Fallon	NOAA Storm Events
Mar 14, 2025	1.25 in 50-sent coin	Harvester 1 hail report · closest 7 mi from O'Fallon	NOAA Storm Events

Lukkuun foy chukw: hail kauchuw kaachin foy, anamw, is foy kaachin anamw.

Nn̄an anam̄mool ekkar O'Fallon meir

Ka anam̄mool ekkar kaan O'Fallon

Of 75 nn̄an anam̄mool ekkar 2006, most fell in April (24) and May (16).

Anam̄mool ekkar kaan O'Fallon

Apr 28, 2012 · 3.00 in (tea cup) · Wentzville (9 mi from O'Fallon)

May 13, 2023 · 3.00 in (tea cup) · Harvester (8 mi from O'Fallon)

National Weather Service description (English): A swath of very large hail fell in eastern St. Charles County. Areas that received large hail includes St. Peters, Harvester and St. Charles, mainly along and east of Jungermann Road. This includes the main street area of St. Charles.

Apr 19, 2011 · 2.75 in (baseball) · Dardenne (5 mi from O'Fallon)

National Weather Service description (English): Numerous reports of large hail ranging from ping pong ball size to baseball size.

Mar 15, 2012 · 2.75 in (baseball) · Dardenne (7 mi from O'Fallon)

National Weather Service description (English): A wide swath of large hail fell from areas along and west of I-64 near Highways N and DD to the east northeast through the cities of Lake St. Louis, Dardenne Prairie, and O'Fallon. The largest hail stones, baseball size, were reported near the intersection of Winghaven Boulevard and I-64. There were numerous reports of one to two inch diameter hail.

May 26, 2024 · 2.75 in (baseball) · St Peters (6 mi from O'Fallon)

National Weather Service description (English): There were numerous reports of 1 to 2 inch hailstones in eastern St. Charles County impacting St. Peters, St. Charles, and Kampsville. The largest reported hailstones were 2 to 2.75 inches in diameter and fell exclusively in St. Charles.

Tornadoes within 10 miles of O'Fallon

Date	Rating	Where	Path
Dec 10, 2021	EF1	Spirit/St Louis 9 mi from O'Fallon	2.4 mi long, 50 yd wide
Dec 10, 2021	EF1	Weldon 9 mi from O'Fallon	6.1 mi long, 50 yd wide
Apr 29, 2017	EF0	Kampville 10 mi from O'Fallon	3.9 mi long, 100 yd wide
Jun 28, 2015	EF2	Peruque 4 mi from O'Fallon	2.3 mi long, 400 yd wide
Sep 9, 2014	EF0	Harvester 7 mi from O'Fallon	1.7 mi long, 25 yd wide
Jun 7, 2014	EF0	Harvester 7 mi from O'Fallon	2.7 mi long, 20 yd wide
May 31, 2013	EF3	Defiance 9 mi from O'Fallon	14.8 mi long, 950 yd wide
Jan 29, 2013	EF0	Chain Of Rocks 9 mi from O'Fallon	1.7 mi long, 30 yd wide
Aug 31, 2012	EF0	Fort Zumwalt 2 mi from O'Fallon	0.4 mi long, 120 yd wide

Damaging thunderstorm winds near O'Fallon

134 reports of damaging thunderstorm wind within 10 miles of O'Fallon since 2006, on 89 days. The strongest measured gust was 71 mph on Jul 23, 2017.

Date	Strongest gust	Where	Source
Sep 17, 2026	damage a reported	Saint Paul 1 wind report	NWS storm report (preliminary)
Aug 12, 2026	damage a reported	O'Fallon, Saint Paul 3 wind reports	NWS storm report (preliminary)
Jul 4, 2026	damage a reported	Weldon Spring, Harvester 4 wind reports	NWS storm report (preliminary)
Jun 25, 2026	60 mph, a estimat	Kampville 1 wind report	NOAA Storm Events
Apr 17, 2026	58 mph, a estimat	Harvester 1 wind report	NOAA Storm Events
Jul 6, 2025	75 mph, a estimat	St Peters, Cottleville 2 wind reports	NOAA Storm Events
Jun 27, 2025	58 mph, a estimat	Harvester 1 wind report	NOAA Storm Events
May 16, 2025	64 mph, a estimat	Dardenne 1 wind report	NOAA Storm Events
Apr 10, 2025	58 mph, a measured	All Saints Vlg 1 wind report	NOAA Storm Events
May 26, 2024	70 mph, a estimat	All Saints Vlg 1 wind report	NOAA Storm Events

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 O'Fallon; 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.

Cities nearby

Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then). Distances are measured from the center of O'Fallon.

Run a roofing company or a local news site? Show O'Fallon's hail history on your website with our widget gratis →

Roofing or restoration company? Get an email within the hour when hail is reported near O'Fallon with our hail alerts ($29 a month) →