Waukesha County Storm Activity
Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 180 days · Updated Sep 11, 2026
Waukesha County, Wisconsin has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 4 tornado reports among 50 severe weather events here in the last 180 days, alongside 21 hail reports with hail up to 2.5" and 25 high-wind reports with gusts up to 64 mph. The most recent recorded storm activity was in September 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.
What the radar showed
Last 30 days in Waukesha County
Recent storms — full detail available in the app
Storm activity from the last 30 days is summarized at the county level on this page. Exact locations, radar snapshots, and official warning boundaries for recent events are available with a free account.
See the specifics — free →Storm log — the official record, day by day
Events older than 30 days, as recorded by the National Weather Service and Storm Prediction Center. Excerpts are quoted directly from official warnings and verified reports.
Sunday, August 9, 2026
1 NWS warning — wind gusts up to 50 mph
“At 1056 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Slinger to near Palmyra. Movement was east at 45 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Waukesha County NWS severe weather mention
Saturday, August 8, 2026
1 SPC verified storm report — hail up to 1.25"
“Report from mPING: Half Dollar (1.25 in.). (MKX)”
- Hail 1.25" 2 E Mukwonago SPC verified report
Monday, July 27, 2026
3 SPC verified storm reports · 1 NWS warning — hail up to 2.5", wind gusts up to 62 mph
“62 MPH wind gust measured via home weather station. Time confirmed from radar data. (MKX)”
“At 954 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 6 miles north of Watertown to near Jefferson. Movement was east at 30 mph. Hazard: Wind gusts up to 40 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 2.5" 1 W Oconomowoc SPC verified report
- Wind 62 mph 2 SW North Prairie SPC verified report
- Hail 0.75" Waukesha County NWS severe weather mention
- Wind Unknown 3 SE Eagle SPC verified report
Thursday, July 2, 2026
1 SPC verified storm report · 1 NWS warning — wind gusts up to 50 mph
“At 632 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Hartford to near Johnson Creek to near Jefferson to near Edgerton to near Brodhead. Movement was east at 35 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
“Trained spotter reports trees down on personal property. Time estimated from radar data. (MKX)”
- Wind 50 mph Waukesha County NWS severe weather mention
- Wind Unknown 1 W Hartland SPC verified report
Wednesday, July 1, 2026
1 SPC verified storm report — wind gusts up to 64 mph
“Private weather station measures 64 MPH wind gust. Time confirmed from radar. (MKX)”
- Wind 64 mph 1 SE Menomonee Falls SPC verified report
Sunday, June 28, 2026
1 NWS warning — wind gusts up to 50 mph
“Winds of 40 to 50 mph will be possible this afternoon as rain comes to an end across southern Wisconsin. This appears to be a wake low situation where winds can be gusty for up to an hour after the rain comes to an end. Platteville and other weather stations in southwest Wisconsin have gusted to 47 mph already.”
- Wind 50 mph Waukesha County NWS severe weather mention
Thursday, June 11, 2026
3 NWS warnings — hail up to 0.25", wind gusts up to 50 mph
“At 549 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from Lisbon to Mukwonago. Movement was northeast at 30 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
“At 1137 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Stoughton to near Candlewick Lake. Movement was northeast at 55 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Waukesha County NWS severe weather mention
- Wind 50 mph Waukesha County NWS severe weather mention
- Hail 0.25" Waukesha County NWS severe weather mention
Wednesday, June 10, 2026
1 SPC verified storm report
“Small tree snapped about half way up. Picture from social media. (MKX)”
- Wind Unknown 2 NNW Menomonee Falls SPC verified report
Friday, June 5, 2026
1 NWS warning — hail up to 0.25"
“At 1157 PM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from Muskego to near Whitewater. Movement was east at 35 mph. Hazard: Wind gusts up to 50 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.25" Waukesha County NWS severe weather mention
Monday, May 18, 2026
2 NWS warnings — hail up to 0.5"
“At 650 AM CDT, Doppler radar was tracking a strong thunderstorm over northwestern Milwaukee, moving northeast at 45 mph. Hazard: Wind gusts up to 40 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
“At 610 AM CDT, Doppler radar was tracking a strong thunderstorm near Palmyra, or near East Troy, moving northeast at 55 mph. Hazard: Wind gusts up to 40 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.5" Waukesha County NWS severe weather mention
- Hail 0.5" Waukesha County NWS severe weather mention
Saturday, May 16, 2026
1 NWS warning — wind gusts up to 50 mph
“At 132 AM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from near Lake Ripley to Antioch. Movement was east at 35 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Waukesha County NWS severe weather mention
Monday, May 4, 2026
1 NWS warning — wind gusts up to 50 mph
“At 557 PM CDT, Doppler radar was tracking gusty showers over Rochester, or near Wind Lake, moving east at 40 mph. Hazard: Wind gusts up to 45 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Also cause reduced visibility due to blowing dust. Locations impacted include...”
- Wind 50 mph Waukesha County NWS severe weather mention
Monday, April 27, 2026
2 NWS warnings — wind gusts up to 50 mph
“Lingering wind gusts up to 50 MPH may continue over the next hour due to a wake low pressure behind departing showers / weak thunderstorms.”
“At 1241 PM CDT, surface weather stations reported gusty winds behind rain showers / weak thunderstorms. Movement of the line of showers was east at 55 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Waukesha County NWS severe weather mention
- Wind 50 mph Waukesha County NWS severe weather mention
Tuesday, April 21, 2026
3 NWS warnings — hail up to 0.88"
“At 1129 AM CDT, Doppler radar was tracking a strong thunderstorm near Ottawa, or 8 miles southwest of Wales, moving east at 50 mph. Hazard: Wind gusts up to 40 mph and nickel size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
“At 1118 AM CDT, Doppler radar was tracking a strong thunderstorm over Lisbon, or over Sussex, moving east at 50 mph. Hazard: Wind gusts up to 40 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.88" Waukesha County NWS severe weather mention
- Hail 0.75" Waukesha County NWS severe weather mention
- Hail 0.5" Waukesha County NWS severe weather mention
Thursday, April 16, 2026
2 SPC verified storm reports — hail up to 1", 1 tornado report
“NWS Damage Survey concludes an EF-0 tornado occurred with estimated peak winds of 70 mph and a width of 75 yards. The tornado started near the intersection of Kelsey Dr (MKX)”
- Tornado Tornado 2 N Wind Lake SPC verified report
- Hail 1" Eagle SPC verified report
Wednesday, April 15, 2026
1 NWS warning — hail up to 0.25"
“At 801 PM CDT, Doppler radar was tracking a strong thunderstorm over Ottawa, or near Wales, moving east at 30 mph. Hazard: Wind gusts up to 50 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.25" Waukesha County NWS severe weather mention
Tuesday, April 14, 2026
6 SPC verified storm reports · 2 NWS warnings — hail up to 2", wind gusts up to 50 mph, 3 tornado reports
“Radar confirmed tornadic debris signature at this location. Multiple roofs ripped off a commercial facility reported by law enforcement. Siding damage to nearby church. (MKX)”
“NWS Storm Survey found EF2 tornado damage in the Town of Lisbon. Maximum winds 120 MPH. Path length 3.2 miles. Duration 6 minutes. Complete loss of roof on southern sid (MKX)”
- Tornado Tornado 2 NW Sussex SPC verified report
- Tornado Tornado 2 WNW Sussex SPC verified report
- Tornado Tornado 1 NW Sussex SPC verified report
- Hail 2" 2 NNE Menomonee Falls SPC verified report
- Hail 1.25" 3 S Richfield SPC verified report
- Wind 50 mph Waukesha County NWS severe weather mention
- Wind 50 mph Waukesha County NWS severe weather mention
- Hail 1" 1 W Oconomowoc SPC verified report
Monday, April 13, 2026
4 SPC verified storm reports — hail up to 2", wind gusts up to 60 mph
“Report from mPING: Hen Egg (2.00 in.). (MKX)”
“Several large trees uprooted or blown down. Some large trees fell on roofs of homes. Located in subdivision on Corby Drive and Karin Drive. Time estimated from radar. (MKX)”
- Hail 2" 2 N Menomonee Falls SPC verified report
- Wind 60 mph 1 W Oconomowoc SPC verified report
- Wind Unknown 1 ENE North Prairie SPC verified report
- Wind Unknown Okauchee Lake SPC verified report
Friday, April 3, 2026
2 NWS warnings — hail up to 0.88"
“At 923 PM CDT, Doppler radar was tracking a strong thunderstorm over Rochester, or 7 miles south of Wind Lake, moving northeast at 25 mph. Hazard: Nickel size hail. Impact: Minor hail damage to vegetation is possible. Locations impacted include...”
“At 914 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Lake Koshkonong to 6 miles east of Milton to near Delavan to near Elkhorn. Movement was northeast at 40 mph. Hazard: Penny size hail. Impact: Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.88" Waukesha County NWS severe weather mention
- Hail 0.75" Waukesha County NWS severe weather mention
Wednesday, April 1, 2026
1 SPC verified storm report
“Waukesha County Dispatch reports a tree on a phone in line Butler. Time estimated by radar. (MKX)”
- Wind Unknown Butler SPC verified report
Tuesday, March 31, 2026
3 NWS warnings — hail up to 0.5", wind gusts up to 50 mph
“Southwest winds on the northern edge of rain will gust 40 to 50 mph early this morning. These gusts should only last 30 to 60 minutes. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
“At 119 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 6 miles north of Lac La Belle to near Lake Koshkonong to near Edgerton. Movement was east at 35 mph. Hazard: Half inch hail. Impact: Minor hail damage to vegetation is possible. Locations impacted include...”
- Wind 50 mph Waukesha County NWS severe weather mention
- Hail 0.5" Waukesha County NWS severe weather mention
- Hail 0.5" Waukesha County NWS severe weather mention
Today's severe weather outlook
Common questions
When was the last severe storm in Waukesha County, WI?
The most recent recorded event was in September 2026. Official NWS and SPC records show 50 severe weather events in Waukesha County over the last 180 days. Exact dates and locations for recent storms are available in the app with a free account.
Has there been hail in Waukesha County recently?
Yes — 21 hail reports in the last 180 days, with hail up to 2.5" recorded.
How do I check whether a specific address was affected?
Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property — county-level pages like this one only tell part of the story.