Hail Swath Map Preview
The Janesville, WI hail swath map preview was last reviewed on August 30, 2026 and shows mapped hail estimates up to 1.00". There are 0 public hail reports, 7 public wind reports, and 0 nearby tornado reports listed for the August 18, 2025 event.
View the August 18, 2025 Janesville, WI 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 Janesville, WI Hail Map
The August 18, 2025 hail swath map for Janesville, WI covers approximately 508 square miles and includes an estimated 109,300 people inside the mapped footprint. The largest mapped area is in the < 0.50" hail band, covering 260 square miles. The highest estimated population exposure is in the < 0.50" hail band with 56,826 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 260 sq mi | 56,826 |
| 0.50-0.75" | 201 sq mi | 49,123 |
| 0.75-1.00" | 46 sq mi | 3,331 |
| 1.00-1.25" | 2 sq mi | 20 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the August 18, 2025 Janesville, WI hail event may have reached your area.
Housing Exposure Inside the Janesville, WI Hail Swath Map
Inside the August 18, 2025 hail swath map area for Janesville, WI, HailGeeks estimates 41,032 single-family homes, 6,701 townhomes, and 9,016 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the < 0.50" hail band, with 21,774 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 21,774 | 3,562 | 5,016 |
| 0.50-0.75" | 17,969 | 3,070 | 3,897 |
| 0.75-1.00" | 1,279 | 69 | 102 |
| 1.00-1.25" | 10 | 0 | 1 |
Use this table to review housing exposure by hail band for the August 18, 2025 Janesville, WI hail map. To check a specific property more closely, use a free Hail Report by Address.
Counties Inside the Janesville, WI Hail Map
Hail from the August 18, 2025 storm was mapped across 19 counties in the Janesville, WI region. Ogle County, IL had the strongest mapped signal, peaking at 1.00" with roughly 656 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 Janesville, WI Hail Map
Zooming in, the swath touched 24 cities near Janesville, WI. Elgin, IL had the strongest mapped signal at 0.50", with an estimated 6,427 single-family homes exposed.
City cards show where the August 18, 2025 Janesville, WI 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 Janesville, WI Hail Swath Map
At the ZIP level, the August 18, 2025 Janesville, WI hail map spans 41 ZIP codes. ZIP 61049 shows the strongest local signal, with mapped hail estimates up to 1.00" and an estimated single-family-home exposure of 148.
Check your ZIP in seconds to see whether hail activity from the August 18, 2025 Janesville, WI event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the August 18, 2025 hail map for Janesville, WI currently list 0 public hail reports, 7 public wind reports, and 0 tornado reports.
| Date & Time | Hail Size | City | State | Description |
|---|---|---|---|---|
| No public hail reports are available for this event. | ||||
| Date & Time | Wind Speed | City | State | Description |
|---|---|---|---|---|
August 18, 2025 3:48 PM CT | Genoa | IL | Tree damage around Genoa... north and south of town. Time estimated from radar. | |
August 18, 2025 3:50 PM CT | 2 NE Genoa | IL | Many trees down northeast of Genoa along Ash Road between North State and Illinois Route 23. Damage includes poles... trees and wires. Time estimated from radar. | |
August 18, 2025 3:52 PM CT | 2 E Genoa | IL | Large tree across the whole road... Illinois 23 north of Illinois 72... northeast of Genoa. Time estimated from radar. | |
August 18, 2025 4:06 PM CT | 4 WNW Sycamore | IL | Three power poles down on Old State Road between Five Points Road and Church Rd west of Sycamore. Time estimated from radar. | |
August 18, 2025 5:45 PM CT | 1 NNW Mount Carroll | IL | Trees and power lines down with some roads blocked. | |
August 18, 2025 6:11 PM CT | Freeport | IL | Report of several small branches generally between 1 to 2 inches in diameter down in Freeport. | |
August 18, 2025 6:20 PM CT | 1 SSW Freeport | IL | Several 6 to 7 inch diameter tree limbs were knocked down with some blocking a street in southern Freeport for a time. 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 18, 2025 Janesville, WI storm event. When available, each report may include the time, size or magnitude, city, state, and a short description.
Related Hail Maps in the Janesville, WI Region
We found 6 more hail maps with reports from the same Janesville, WI region as the August 18, 2025 event. These related maps cover storm dates from Jul 16, 2025 through Aug 16, 2025, with mapped hail estimates ranging from 0.75" to 2.75". In this set, the strongest related map reached 2.75", and the most recent map shown is from Aug 16, 2025.
If none of these related Janesville, WI 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 Janesville, WI region — so you can check whether hail activity may have reached your property.
Local Hail Review Options Near Janesville, WI
Not sure whether the August 18, 2025 Janesville, WI 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 Janesville, WI 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 18, 2025 Janesville, WI event — or another recent hail event — may have been mapped at that address.
Find a roof or exterior pro serving the Janesville, WI 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 18, 2025 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 18, 2025 hail map visuals alone. They do not confirm property damage and do not replace an on-site inspection for a property in the Janesville, WI 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 18, 2025 Janesville, WI hail event.