Wisconsin lightning map
Wisconsin sits in the upper-Midwest storm belt, with frequent summer thunderstorm complexes shaped by lake breezes and passing fronts.
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Detected from NOAA GOES-19 GLM satellite data. Aggregate count for Wisconsin — your exact location and alerts live in the app.
About lightning in Wisconsin
Wisconsin sits in the Great Lakes and Midwest storm track, where summer brings frequent thunderstorms along cold fronts and large overnight complexes off the plains. Lake breezes shape afternoon development near the shorelines. The active window runs May through August. With storms that can build after dark and move fast, the live distance and trend to the nearest strike are what give you warning.
- Thunderstorm days/yr
- 40
- US rank
- #27 of 50
- Peak season
- May–August
State thunderstorm-day normals are provisional (NOAA/NWS); per-city climate data is shown where a station normal is published.
Cities in Wisconsin
Lightning safety in Wisconsin
Across Wisconsin, lightning routinely strikes miles ahead of the rain, so a live nearest-strike distance beats waiting for the downpour. The 30-30 ruleis the baseline: shelter within 30 seconds of thunder, and stay in for 30 minutes after the last rumble. StrikeCast’s distance and approaching or moving-away trend tell you which way a Wisconsin storm is heading before it arrives.
StrikeCast app
Distance, trend & alerts — in your pocket.
GPS-precise distance to the nearest strike, live approaching/moving-away trend, and push alerts for every place that matters across Wisconsin — home, work, the kids' school.
Your exact location stays on your device. Never shared. Never tracked.
Lightning guides
Frequently asked
How many thunderstorm days does Wisconsin get?
Wisconsin averages about 40 thunderstorm days a year, versus a US average near 25 — roughly 1.6× the national norm. Activity peaks May–August.
Where does Wisconsin rank for lightning in the US?
By mean annual thunderstorm days, Wisconsin ranks #27 of 50 states. Rankings use NOAA/NWS climate normals; the live distance and trend on this page come from NOAA GOES-19 satellite data.
When is thunderstorm season in Wisconsin?
Lightning is most frequent May–August in Wisconsin.
How does StrikeCast track lightning in Wisconsin?
StrikeCast reads NOAA GOES-19 GLM (Geostationary Lightning Mapper) satellite data, updated continuously, to show how far away the nearest strike is and whether it is approaching or moving away. Save any place in Wisconsin in the free app to get a push alert when lightning closes in.