Milwaukee Weather: Dense AM Fog, Rain Arrives by Thursday

Southern Wisconsin starts Wednesday with fog and low clouds before improving Wednesday afternoon.

Mar. 4, 2026 at 10:39am

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Southern Wisconsin will see dense morning fog on Wednesday, followed by improving conditions in the afternoon. Rain chances increase Wednesday night and continue through Thursday as a weak system moves through the Midwest. A stronger storm system arrives Friday, bringing widespread rain, embedded thunderstorms, and very mild temperatures in the 50s to 60s.

Why it matters

The changing weather patterns in southern Wisconsin can impact travel, outdoor activities, and daily routines for residents. Monitoring the forecast is important to prepare for potential disruptions from fog, rain, and storms.

The details

Wednesday will start with dense fog and low clouds in southern Wisconsin, but conditions are expected to improve during the afternoon. Rain chances increase Wednesday night and continue through Thursday as a weak system moves through the region. A stronger storm system arrives on Friday, bringing widespread rain, embedded thunderstorms, and very mild temperatures in the 50s to 60s. Saturday will see morning rain and a slight chance of thunderstorms, before conditions gradually improve through the weekend.

  • Wednesday morning: Dense fog and low clouds
  • Wednesday afternoon: Improving conditions
  • Wednesday night: Increasing rain chances
  • Thursday: Rain likely
  • Friday: Widespread rain, embedded thunderstorms, very mild temperatures

The players

Rob Haswell

FOX6 Chief Meteorologist who provided the weather forecast.

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The takeaway

Residents in southern Wisconsin should monitor the changing weather conditions and be prepared for potential disruptions from fog, rain, and storms throughout the week. Checking weather forecasts and utilizing weather apps and tools can help people plan accordingly and stay safe.