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Hail history for Merton, WI

Haili ijiin 10 mileJul 27, 20261.00 in (25-sent coin)

Ane haili, 12 mwwoon ijiin2

Haili ane pwon ijiin 20063.00 in (tea cup)Jun 7, 2008

Ane haili ijiin 200642

Ane haili 1 inch o pwon29

Tornado ijiin 10 mile5

Wind reports within 10 miles106

Hail has been reported within 10 miles of Merton on 42 days since 2006. The largest stones measured 3.00 in (tea cup) on Jun 7, 2008. Hail is most common here in September and May.

Recent hail near Merton

Date	Size hail	Where	Source
Jul 27, 2026	2.00 in hen egg	Oconomowoc, Delafield 2 hail reports · closest 7 mi from Merton	NWS storm report (preliminary)
Apr 14, 2026	2.00 in hen egg	Menomonee Falls, Merton, Monches 6 hail reports · closest near the center of Merton	NOAA Storm Events
May 15, 2025	2.00 in hen egg	Alderley, Lapham Peak State Park, Nashotah 5 hail reports · closest 5 mi from Merton	NOAA Storm Events
Apr 18, 2025	1.00 in 25-sent coin	Lac La Belle, Waukesha Co Airport 2 hail reports · closest 9 mi from Merton	NOAA Storm Events

Lukkuun foy chukw: hail kauchuw kaachin foy, anamw, is foy kaachin anamw.

Nn̄an anam̄mool ekkar Merton meir

Ka anam̄mool ekkar kaan Merton

Of 42 nn̄an anam̄mool ekkar 2006, most fell in September (8) and May (7).

Anam̄mool ekkar kaan Merton

Jun 7, 2008 · 3.00 in (tea cup) · Hartland (6 mi from Merton)

National Weather Service description (English): Hail size ranged from 0.75 to 3.00 inches in diameter.

Apr 13, 2006 · 2.00 in (hen egg) · Sussex (5 mi from Merton)

National Weather Service description (English): Hail sized ranged from 1.00 to 2.00 inches in diameter.

May 11, 2011 · 2.00 in (hen egg) · Hartland (4 mi from Merton)

May 15, 2025 · 2.00 in (hen egg) · Alderley (9 mi from Merton)

Apr 14, 2026 · 2.00 in (hen egg) · Menomonee Falls (10 mi from Merton)

National Weather Service description (English): Trained spotter reports 2 inch diameter hail northeast of Menomonee Falls.

Tornadoes within 10 miles of Merton

Date	Rating	Where	Path
Aug 18, 2026	EF?	Hubertus 6 mi from Merton
Apr 14, 2026	EF2	Merton 1 mi from Merton	3.8 mi long, 150 yd wide
Oct 12, 2022	EF0	Nashotah 5 mi from Merton	0.6 mi long, 50 yd wide
Jul 29, 2021	EF0	Lapham Peak State Park 8 mi from Merton	2.4 mi long, 50 yd wide
May 9, 2018	EF0	Holy Hill 5 mi from Merton	5.2 mi long, 50 yd wide

Damaging thunderstorm winds near Merton

106 reports of damaging thunderstorm wind within 10 miles of Merton since 2006, on 64 days. The strongest measured gust was 77 mph on Aug 10, 2021.

Date	Strongest gust	Where	Source
Sep 4, 2026	damage a reported	Hubertus 1 wind report	NWS storm report (preliminary)
Sep 3, 2026	damage a reported	Hubertus 1 wind report	NWS storm report (preliminary)
Aug 18, 2026	damage a reported	Richfield, Hubertus, Sussex 7 wind reports	NWS storm report (preliminary)
Jul 2, 2026	64 mph, a measured	Menomonee Falls, Hartland, Pewaukee 3 wind reports	NWS storm report (preliminary)
Jun 10, 2026	60 mph, a estimat	Lannon 1 wind report	NOAA Storm Events
Apr 14, 2026	70 mph, a estimat	Holy Hill, Meeker 2 wind reports	NOAA Storm Events
Sep 22, 2025	58 mph, a estimat	Delafield 1 wind report	NOAA Storm Events
Aug 12, 2025	64 mph, a estimat	Delafield 1 wind report	NOAA Storm Events
May 16, 2025	66 mph, a measured	Summit Corners 1 wind report	NOAA Storm Events
Mar 15, 2025	67 mph, a measured	Summit Corners, Oconomowoc 2 wind reports	NOAA Storm Events

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 Merton; 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.

Cities nearby

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 Merton.

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