McDonough County was hit as recently as 2026-06-17, 44 days ago. McDonough County is hit in most years. The largest stone on record here is 2.5 inches, a tennis ball and 2.5 times the National Weather Service's 1 inch severe criterion, reported on 2023-05-07 near Swan Creek.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Illinois. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-06-17, around Adair. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls McDonough County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
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See call-center options ->NOAA's Storm Prediction Center has logged 26 separate hail days here since 2010 -- 1.5 a year over 17 years of record. Those days carry 66 separate reports between them, two or three on a typical one. 3 of those 17 years produced none at all. The busiest single year was 2024, with 4 hail days. The last five years have run hotter than the long-run rate: 11 days since 2022, against 1.2 a year before that.
3 of the 26 days reached 2 inches or more -- 12%, or about one hail day in 9, the last on 2023-05-07. They land in the same month as everything else, May. 7 of the 26 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Illinois, see the Illinois hail map and history.
Reports cluster nearest Industry -- 6 of the county's 26 hail days -- then Macomb (6), Bushnell (5), Colchester (5) and Prairie City (4). Beyond those, NOAA names Adair, Blandinsville, Good Hope, New Philadelphia and Bardolph on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| 2 SSE Macomb | 4 | 1.75″ |
| Macomb | 4 | 1.25″ |
| Blandinsville | 3 | 1.75″ |
| Bushnell | 3 | 1.75″ |
| Industry | 3 | 1.75″ |
The season runs March through June: 22 of the 26 hail days on record fall in those 4 months (85%). May is the single busiest month, with 7 of them (27%). That peak sits inside the window rather than at either end. Hail has also been reported in July, August and November, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| March | 4 |
| April | 6 |
| May | 7 |
| June | 5 |
| July | 2 |
| August | 1 |
| November | 1 |
That day put 1 report on the map, the biggest 1 inch near Adair. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-06-17 | 1.00″ | 1 |
| 2024-05-24 | 1.00″ | 1 |
| 2024-05-02 | 1.50″ | 3 |
| 2024-03-31 | 1.50″ | 9 |
| 2024-03-04 | 1.00″ | 1 |
| 2023-08-17 | 1.50″ | 1 |
| 2023-05-07 | 2.50″ | 10 |
| 2023-04-20 | 1.00″ | 3 |
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 2.5 inches, which is the purple band. Look up a street address with the hail history by address tool.
The nearest counties with a page of their own: Fulton County (38 hail days), Hancock County (36) and Warren County (21). McDonough County sits in between.
Fulton County · Hancock County · Warren County
Back to the Illinois hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, McDonough County, Illinois only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.