Wisconsin Braces for Spring Weather Swings

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As Wisconsin transitions from winter to spring, the state is facing a mix of weather conditions. While parts of the Northwoods and Upper Peninsula still have deep snow cover, much of the southern half of the state has seen significant snowmelt in recent weeks. Looking ahead, an ENSO-neutral spring is likely, meaning Pacific Ocean temperatures are not notably above or below average, which can lead to more unpredictable weather patterns.

Why it matters

Wisconsin's weather can swing dramatically during the spring transition, with the potential for both wetter, colder conditions and warmer, drier weather depending on Pacific Ocean temperatures. This variability can impact agriculture, infrastructure, and outdoor activities across the state.

The details

As of February 26, 2026, 75.1% of the Northern Great Lakes area was covered by snow, with snow depth ranging from 20 to 30 inches across the Northwoods of Wisconsin and the Upper Peninsula of Michigan. However, significant snowmelt has occurred over the last few weeks across Northeast Wisconsin and the southern half of the state. The 2026 spring outlook from Green Bay's National Weather Service leans toward a low flood risk, despite the snowpack up north, due to ongoing drought in parts of the state.

• As of February 26, 2026, 75.1% of the Northern Great Lakes area was covered by snow.
• Snow depth across the Northwoods of Wisconsin and the Upper Peninsula of Michigan ranged from 20 to 30 inches.
• Significant snowmelt has occurred over the last few weeks across Northeast Wisconsin and the southern half of the state.