O Fallon, MO hail history
Every day hail 1 inch or larger hit O Fallon neighborhoods since November 2023, from street-level hail swaths checked against NOAA storm reports. Updated daily.
Latest big hail storm: Apr 27, 2026
Shaded areas show where hail 1 inch or larger fell that day, by size, from radar-modeled hail swaths.
See every door that got hit.
Zeus shows the exact homes inside each hail swath in O Fallon, ranks the neighborhoods worth knocking first, and tracks every door you knock.
Plans from $69/month for your state · Cancel anytime during the 7-day trial and you won't be charged.
Every hail day in O Fallon
Days when hail 1 inch or larger reached at least 25 homes in O Fallon, newest first. Homes are the homes in the neighborhoods the hail touched.
| Date | Largest hail | Homes | Neighborhoods |
|---|---|---|---|
| Jun 1, 2026 | 1.00 in | 107 | 1 |
| Apr 27, 2026 | 1.00 in | 11,074 | 520 |
| Apr 17, 2026 | 1.25 in | 107 | 1 |
| Aug 18, 2025 | 1.00 in | 691 | 16 |
| Aug 12, 2025 | 1.00 in | 9,982 | 530 |
| May 16, 2025 | 1.50 in | 2,828 | 79 |
| Apr 30, 2025 | 1.50 in | 11,424 | 393 |
| Aug 30, 2024 | 1.75 in | 43 | 8 |
| Aug 15, 2024 | 1.25 in | 1,711 | 69 |
| Jul 16, 2024 | 1.00 in | 35 | 2 |
| Jul 8, 2024 | 1.75 in | 107 | 1 |
| May 26, 2024 | 1.75 in | 1,838 | 88 |
| May 24, 2024 | 1.25 in | 107 | 1 |
| May 21, 2024 | 1.00 in | 59 | 8 |
| Apr 18, 2024 | 1.00 in | 107 | 1 |
| Apr 1, 2024 | 1.75 in | 168 | 2 |
| Mar 14, 2024 | 2.25 in | 15,282 | 766 |
O Fallon neighborhoods hit most often
Neighborhoods with the most days of 1-inch-or-larger hail since November 2023.
| Neighborhood | Hail days | Largest | Last hit | Homes |
|---|---|---|---|---|
| Willerding Consolidation | 13 | 2.00 in | Jun 1, 2026 | 107 |
| Forest Ac | 6 | 2.00 in | Apr 27, 2026 | 43 |
| Forest Pk North | 5 | 2.25 in | Apr 27, 2026 | 61 |
| Northwood Estate 02 | 5 | 2.25 in | Apr 27, 2026 | 42 |
| Lake Chas Hills #2 Resubdivision | 5 | 2.25 in | Apr 27, 2026 | 35 |
| Country Oak Est #1 | 5 | 2.25 in | Apr 27, 2026 | 29 |
| Green Meadow Farms South | 5 | 1.75 in | Apr 27, 2026 | 42 |
| Lake Chas Hills #2 | 4 | 2.25 in | Apr 27, 2026 | 52 |
| Country Life Est | 4 | 2.25 in | Apr 27, 2026 | 42 |
| Turtle Creek #3 | 4 | 2.00 in | Apr 27, 2026 | 120 |
Hail history near O Fallon
St. Charles · Ballwin · St. Louis · Springfield · Kansas City · St. Joseph
O Fallon hail questions
When was the last hail storm in O Fallon?
The most recent day with hail 1 inch or larger in O Fallon neighborhoods was Jun 1, 2026, with hail up to 1.00 in across 1 neighborhood (107 homes).
How often does it hail in O Fallon?
O Fallon had 17 days with hail 1 inch or larger since November 2023: 10 in 2024, 4 in 2025, 3 in 2026 so far.
What is the largest hail O Fallon has had recently?
The largest hail in O Fallon in that time was 2.25 in on Mar 14, 2024.
Which hail storm hit the most homes in O Fallon?
The storm on Mar 14, 2024 reached 15,282 homes in 766 neighborhoods, with hail up to 2.25 in.
Where does this hail data come from?
Hail sizes come from radar-modeled hail swaths, mapped to every neighborhood. A day is listed only when it is backed by a strong radar hail signal or by a NOAA Storm Prediction Center hail report nearby, and only when hail of 1 inch or larger reached at least 25 homes. The newest days are preliminary and can still change slightly.
Updated Nov 2, 2026. Hail sizes are radar-modeled estimates for each neighborhood, not ground measurements at a specific roof.