Hail HistoryHome › Illinois › Mchenry County › Marengo
Hail history for Marengo, IL
Hail has been reported within 10 miles of Marengo on 26 days since 2006. The largest stones measured 2.5 in (tennis ball) on Aug 27, 2024. Hail is most common here in May and April.
Recent hail near Marengo
| Date | Hail size | Where |
|---|---|---|
| Apr 14, 2026 | 1.25 in half dollar | Poplar Grove Airport, Garden Prairie 2 hail reports · closest 6 mi from Marengo |
| Aug 16, 2025 | 1 in quarter | Woodstock 1 hail report · closest 10 mi from Marengo |
One row per day: the largest hail reported that day within 10 miles, the places and the number of reports.
Hail days near Marengo by year
When hail season peaks near Marengo
Of the 26 hail days since 2006, most fell in May (7) and April (6).
Largest hail storms near Marengo
Aug 27, 2024 · 2.5 in (tennis ball) · Woodstock (9 mi from Marengo)
National Weather Service description (English): A trained spotter reported 1.75 hail near US Rt. 14 and Dean St.Jun 19, 2009 · 1.75 in (golf ball) · Marengo (0 mi from Marengo)
National Weather Service description (English): Hail to the size of golf balls was reported in Marengo. Other reports in Marengo included nickel size and half dollar size hail.Aug 30, 2013 · 1.75 in (golf ball) · Marengo (5 mi from Marengo)
Oct 2, 2006 · 1.5 in (ping pong ball) · Marengo (0 mi from Marengo)
Jul 13, 2015 · 1.5 in (ping pong ball) · Marengo (3 mi from Marengo)
Tornadoes within 10 miles of Marengo
| Date | Rating | Where |
|---|---|---|
| Jun 24, 2026 | EF0 | Harmony 9 mi from Marengo |
| Jul 12, 2023 | EF1 | Harmony 8 mi from Marengo |
| May 31, 2023 | EF? | Franklinville 6 mi from Marengo |
| Aug 10, 2020 | EF1 | Coral 5 mi from Marengo |
| May 23, 2020 | EF0 | New Lebanon 8 mi from Marengo |
| May 23, 2020 | EF0 | Hampshire 7 mi from Marengo |
| Apr 9, 2015 | EF1 | Herbert 9 mi from Marengo |
| Jun 19, 2009 | EF1 | Woodstock 9 mi from Marengo |
Damaging thunderstorm winds near Marengo
87 reports of damaging thunderstorm wind within 10 miles of Marengo since 2006, on 60 days. The strongest measured gust was 76 mph on Apr 17, 2026.
| Date | Strongest gust | Where |
|---|---|---|
| Jun 10, 2026 | 60 mph, measured | Franklinville, Hampshire 2 wind reports |
| Apr 17, 2026 | 76 mph, measured | Riley, Herbert 2 wind reports |
| Apr 2, 2026 | 60 mph, estimated | Woodstock 1 wind report |
| Aug 18, 2025 | 60 mph, estimated | Genoa 1 wind report |
| Aug 16, 2025 | 60 mph, estimated | Woodstock 1 wind report |
| Jul 16, 2025 | 63 mph, estimated | New Lebanon 1 wind report |
| Jul 10, 2025 | 69 mph, estimated | Marengo, Casa De Aero Park Airport, Garden Prairie 3 wind reports |
| Jun 3, 2025 | 64 mph, measured | Dacy Airport, Riley, Woodstock 4 wind reports |
| May 15, 2025 | 67 mph, measured | Genoa, Marengo 2 wind reports |
| Mar 14, 2025 | 70 mph, estimated | Casa De Aero Park Airport, Coral, Marengo 5 wind reports |
Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.
Filing a roof or car hail claim?
Insurers ask for the date of loss. The dates on this page are when hail was reported near Marengo; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.
Nearby cities
- Elgin
54 hail days - Rockford
53 hail days - Hoffman Estates
59 hail days - Schaumburg
60 hail days - Palatine
59 hail days - Janesville
33 hail days - Aurora
54 hail days - Wheaton
65 hail days
Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then). Distances are measured from the center of Marengo.
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