Hail Swath Map Preview
The Saint Louis, MO hail swath map preview was last reviewed on August 30, 2026 and shows mapped hail estimates up to 2.00". There are 1 public hail reports, 14 public wind reports, and 0 nearby tornado reports listed for the August 12, 2026 event.
View the August 12, 2026 Saint Louis, MO hail event on the free interactive hail map, then check a free Hail Report by ZIP to see a more local hail signal for your area.
Impact Area and Population for the Saint Louis, MO Hail Map
The August 12, 2026 hail swath map for Saint Louis, MO covers approximately 1,556 square miles and includes an estimated 171,771 people inside the mapped footprint. The largest mapped area is in the 0.50-0.75" hail band, covering 651 square miles. The highest estimated population exposure is in the 0.50-0.75" hail band with 70,597 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 414 sq mi | 59,571 |
| 0.50-0.75" | 651 sq mi | 70,597 |
| 0.75-1.00" | 286 sq mi | 22,031 |
| 1.00-1.25" | 127 sq mi | 15,273 |
| 1.25-1.50" | 45 sq mi | 3,136 |
| 1.50-1.75" | 24 sq mi | 845 |
| 1.75-2.00" | 7 sq mi | 226 |
| 2.00-2.25" | 2 sq mi | 92 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the August 12, 2026 Saint Louis, MO hail event may have reached your area.
Housing Exposure Inside the Saint Louis, MO Hail Swath Map
Inside the August 12, 2026 hail swath map area for Saint Louis, MO, HailGeeks estimates 74,712 single-family homes, 3,457 townhomes, and 11,625 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the 0.50-0.75" hail band, with 30,714 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 26,255 | 1,227 | 5,203 |
| 0.50-0.75" | 30,714 | 1,361 | 4,077 |
| 0.75-1.00" | 9,709 | 400 | 1,271 |
| 1.00-1.25" | 6,316 | 382 | 696 |
| 1.25-1.50" | 1,318 | 87 | 326 |
| 1.50-1.75" | 319 | 0 | 51 |
| 1.75-2.00" | 74 | 0 | 1 |
| 2.00-2.25" | 7 | 0 | 0 |
Use this table to review housing exposure by hail band for the August 12, 2026 Saint Louis, MO hail map. To check a specific property more closely, use a free Hail Report by Address.
Counties Inside the Saint Louis, MO Hail Map
Hail from the August 12, 2026 storm was mapped across 22 counties in the Saint Louis, MO region. Ste. Genevieve County, MO had the strongest mapped signal, peaking at 2.00" with roughly 4,042 single-family homes inside the swath.
County pages group every mapped hail event in the area. For a closer look, drop to the city or ZIP level below, or run a free Hail Report by Address.
Cities Inside the Saint Louis, MO Hail Map
Zooming in, the swath touched 43 cities near Saint Louis, MO. St. Clair, MO had the strongest mapped signal at 1.50", with an estimated 538 single-family homes exposed.
City cards show where the August 12, 2026 Saint Louis, MO hail activity was mapped, but your ZIP can show a closer local signal. Get a free Hail Report by ZIP, and if the signal looks meaningful, ask a local pro about a Remote Hail Inspection to see whether an on-site roof or exterior review may be worth scheduling.
ZIP Codes Inside the Saint Louis, MO Hail Swath Map
At the ZIP level, the August 12, 2026 Saint Louis, MO hail map spans 65 ZIP codes. ZIP 63673 shows the strongest local signal, with mapped hail estimates up to 2.00" and an estimated single-family-home exposure of 85.
Check your ZIP in seconds to see whether hail activity from the August 12, 2026 Saint Louis, MO event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the August 12, 2026 hail map for Saint Louis, MO currently list 1 public hail reports, 14 public wind reports, and 0 tornado reports.
| Date & Time | Hail Size | City | State | Description |
|---|---|---|---|---|
August 12, 2026 4:30 PM CT |
1.00 in | 1 Sw Ellis Grove | IL | No National Weather Service description provided. |
| Date & Time | Wind Speed | City | State | Description |
|---|---|---|---|---|
August 12, 2026 4:25 PM CT | 2 Sse Sparta | IL | Thunderstorm outflow brought down power lines. Time estimated by radar. | |
August 12, 2026 5:05 PM CT | 2 Nne O'Fallon | MO | Tree down near civic and maine street. | |
August 12, 2026 5:05 PM CT | 2 Nnw O'Fallon | MO | A couple of trees down between Saint Paul and OFallon. Time estimated by radar. | |
August 12, 2026 5:05 PM CT | 2 Nnw O'Fallon | MO | Large tree limb down near Saint Nicholas Ct. | |
August 12, 2026 5:05 PM CT | 2 Nnw O'Fallon | MO | Tree down near Autumn Grove and Autumn Valley Drive. | |
August 12, 2026 5:05 PM CT | 2 Sse Saint Paul | MO | Large tree down at a residence off Obrecht Lane. | |
August 12, 2026 5:28 PM CT | Union | MO | Multiple lines down around Union. | |
August 12, 2026 5:32 PM CT | Saint Clair | MO | Trees and powerlines down. Time estimated by radar. Report relayed by KTVI-TV. | |
August 12, 2026 5:34 PM CT | 3 Nw Moselle | MO | Large trees down. Sizes are estimated to be about 12 inches in diameter. | |
August 12, 2026 5:45 PM CT | Sullivan | MO | Lots of tree damage across town. Time estimated. | |
August 12, 2026 6:20 PM CT | 1 Ne De Soto | MO | Approximately 8 inch tree or tree limb down on house and power lines. Time estimated by radar. | |
August 12, 2026 6:20 PM CT | Grubville | MO | Tree limbs damaged. | |
August 12, 2026 6:50 PM CT | 2 Se Ellis Grove | IL | Trees blown down. Time esitmated by radar. | |
August 12, 2026 6:55 PM CT | 3 Sw New Palestine | IL | Numerous 4-6 inch trees and one power pole down. Time estimated by radar. |
| Date & Time | Rating | City | State | Description |
|---|---|---|---|---|
| No public tornado reports are available for this event. | ||||
This table includes only public storm reports connected to the August 12, 2026 Saint Louis, MO storm event. When available, each report may include the time, size or magnitude, city, state, and a short description.
Related Hail Maps in the Saint Louis, MO Region
We found 6 more hail maps with reports from the same Saint Louis, MO region as the August 12, 2026 event. These related maps cover storm dates from Jul 10, 2026 through Aug 6, 2026, with mapped hail estimates ranging from 0.75" to 1.75". In this set, the strongest related map reached 1.75", and the most recent map shown is from Aug 6, 2026.
If none of these related Saint Louis, MO hail maps look close enough to your property, check a free Hail Report by Address. It reviews hail history for a specific location — not just the broader Saint Louis, MO region — so you can check whether hail activity may have reached your property.
Local Hail Review Options Near Saint Louis, MO
Not sure whether the August 12, 2026 Saint Louis, MO hail map matters for your property? Start with a free Hail Report by Address to see whether hail activity was mapped for that property. If the property signal looks meaningful, you can choose a local pro serving the Saint Louis, MO region and ask about a Remote Hail Inspection before deciding whether an on-site roof or exterior review is worth scheduling.
Check a specific property to see whether hail activity from the August 12, 2026 Saint Louis, MO event — or another recent hail event — may have been mapped at that address.
Find a roof or exterior pro serving the Saint Louis, MO region who can help you understand what the property hail signal may mean.
A participating local pro reviews property-level hail history remotely — not just the August 12, 2026 event — to help decide whether an on-site inspection may be worth scheduling.
A free Hail Report by Address and a Remote Hail Inspection can help you look beyond the August 12, 2026 hail map visuals alone. They do not confirm property damage and do not replace an on-site inspection for a property in the Saint Louis, MO region, but they can help you make a more informed next decision before anyone climbs on the roof.
Frequently Asked Questions
Common questions about the August 12, 2026 Saint Louis, MO hail event.