Severe Storms Possible Overnight in Wisconsin

Damaging winds, hail, and tornadoes could impact the region late Monday into Tuesday

Apr. 13, 2026 at 2:23am

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A sweeping, atmospheric landscape painting in muted tones of gray, blue, and green, depicting a massive storm system dominating the sky over a small town or rural area, conveying the overwhelming scale and power of the natural forces at play.A looming storm system threatens a small Wisconsin community, underscoring the power of nature and the need for vigilance during severe weather events.Today in Milwaukee

The National Weather Service warns that severe thunderstorms are possible across parts of Wisconsin late Monday into Monday night, with the potential for damaging winds, hail, and tornadoes as storms move in from the west. Forecasters say storms along and south of a warm front will carry the greatest severe weather risk, including tornadoes and damaging winds.

Why it matters

Wisconsin has seen an increase in severe weather events in recent years, with storms causing significant property damage and disrupting communities. This latest round of storms could pose a serious threat to public safety, especially if tornadoes develop.

The details

The storms are expected to develop between 3 p.m. and 6 p.m. on Monday, with the greatest potential for widespread activity from the evening into the overnight hours. Large hail up to 2 to 3 inches in diameter is also a concern, especially north of the warm front. In addition to the severe weather threat, multiple rounds of thunderstorms are expected through midweek, bringing the potential for heavy rainfall, localized flooding, and rising river levels.

  • Storms could begin developing between 3 p.m. and 6 p.m. on Monday, April 13, 2026.
  • The greatest potential for widespread severe activity is expected from the evening into the overnight hours on Monday, April 13, 2026.

The players

National Weather Service

The federal agency responsible for weather forecasting and issuing severe weather warnings in the United States.

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What they’re saying

“Residents are urged to stay weather-aware through the week, monitor forecasts, and be prepared to take action if warnings are issued.”

— National Weather Service

What’s next

Forecasters say the most widespread severe weather risk in Wisconsin may shift into Tuesday, when confidence in storm development and placement is higher. Residents should continue to monitor weather updates and be prepared to take shelter if necessary.

The takeaway

This severe weather event highlights the importance of being prepared for extreme storms in Wisconsin, which have become more frequent and intense in recent years due to the impacts of climate change. Residents should stay vigilant, follow weather warnings, and have a plan in place to protect themselves and their property.