Illinois storm reports for August 21, 2026
NOAA recorded 9 hail reports, 5 wind reports and 5 tornado reports in Illinois on August 21, 2026.
- in Illinois
- 19
- Storm reports
- Highland, Madison County, IL
- 2.5 in
- Largest hail
- 5
- Tornado reports
Hail, inches
- 0.75
- 1
- 1.5
- 2
- 2.5
- 3+
Dots: reports. Shading: radar estimate.
- Wind report
- Estimated gusts, 50 to 90 mph
- Tornado and its path
- Surveyed tornado path
Hail, inches
- 0.75
- 1
- 1.5
- 2
- 2.5
- 3+
Dots: reports. Shading: radar estimate.
- Wind report
- Estimated gusts, 50 to 90 mph
- Tornado and its path
- Surveyed tornado path
Source: NOAA/NWS Storm Prediction Center, preliminary storm reports. NOAA revises recent reports for several weeks. Report day: 12:00 UTC on August 21, 2026 to 12:00 UTC the next day. Times are Central.
Select a dot or a path for the report. NWS survey teams walked the shaded paths after the storm; each is drawn at the widest width they found, so it can look wider than the damage at any one spot. Gust lines are estimates: the highest gust of the day in NOAA's hourly 2.5 km wind analysis (URMA), which fills in between weather stations. They aren't measurements at any building.
Reports by hour
Hail9, most at 2 AM
Wind5, most at 7 PM
Tornado5, most at 7 PM
Every report
Source: NOAA/NWS Storm Prediction Center.
| Time | Rating | Where | Path |
|---|---|---|---|
| 5:55 PM | Not rated | 4 SE Sublette, Lee County, IL | Not surveyed |
| 5:57 PM | Not rated | 4 SE Sublette, Lee County, IL | Not surveyed |
| 7:11 PM | Not rated | 1 S Depue, Putnam County, IL | Not surveyed |
| 7:13 PM | Not rated | 2 N Moronts, Putnam County, IL | Not surveyed |
| 7:15 PM | Not rated | 1 NNE Moronts, Putnam County, IL | Not surveyed |
| Time | Size | Where |
|---|---|---|
| 3:09 PM | 1.0 in | 3 E Sycamore, De Kalb County, IL |
| 3:55 PM | 1.0 in | 1 N Machesney Park, Winnebago County, IL |
| 6:05 PM | 1.5 in | 3 N Mendota, La Salle County, IL |
| 6:49 PM | 1.0 in | 1 WNW Savanna, Carroll County, IL |
| 2:53 AM | 1.0 in | Vernon, Marion County, IL |
| 2:55 AM | 2.5 in | Highland, Madison County, IL |
| 2:56 AM | 1.75 in | 3 SE Grantfork, Madison County, IL |
| 3:02 AM | 1.5 in | Grantfork, Madison County, IL |
| 3:25 AM | 2.0 in | Aviston, Clinton County, IL |
| Time | Gust | Where |
|---|---|---|
| 7:19 PM | Not measured | 2 N Florid, Putnam County, IL |
| 7:23 PM | Not measured | Fulton, Whiteside County, IL |
| 7:30 PM | Not measured | 1 E Fulton, Whiteside County, IL |
| 8:30 PM | Not measured | 2 SSE Osborn, Henry County, IL |
| 3:30 AM | Not measured | 8 WNW Dix, Jefferson County, IL |
Cities with reports nearby
Reports within 15 miles of the center of each city we track.
| City | Largest hail | Highest gust | Tornado reports |
|---|---|---|---|
| Rockford, IL | 1.0 in | None | 0 |
Reports are what observers recorded near a location, not a complete record of every storm. They don’t describe conditions at any building.