Green Bay, Wis. – Dense fog could blanket northeast Wisconsin overnight into Thursday, creating dangerous conditions for morning commuters and Patriot Day events. Reduced visibility may impact major highways, including I-41 and Highway 29, where drivers should slow down and allow extra time.
According to the National Weather Service in Green Bay, patchy fog, locally dense, will linger late tonight through early Thursday morning. The fog could limit visibility below one-quarter mile in spots, especially across Brown, Outagamie, and Shawano counties. Motorists are urged to use low beams and avoid unnecessary travel until conditions improve.
By Thursday afternoon, skies will clear, and temperatures will reach the mid-70s under calm northeast winds. Friday brings mostly sunny skies with highs near 80, but a storm system will move in by evening. Scattered thunderstorms are possible Friday night into Saturday, which could affect outdoor gatherings and travel across northeast Wisconsin. Event organizers marking Patriot Day in Green Bay should monitor the forecast closely.
Thunderstorms may produce brief heavy rain and gusty winds late Friday into Saturday, though widespread severe weather is not expected. Spotter activation is not anticipated tonight but could be reconsidered if storms intensify this weekend.
Residents should stay alert for changing weather and plan around fog and thunderstorm windows. Charge devices, check road conditions, and allow extra time if traveling during overnight or early morning hours.
Five Day Forecast for Green Bay, Wisconsin
- Thursday, Sept. 11: Morning fog, then sunny, high 75.
- Friday, Sept. 12: Mostly sunny, high 80. Evening storms possible.
- Saturday, Sept. 13: Showers and thunderstorms early, high 81. Clearing later.
- Sunday, Sept. 14: Mostly sunny, high 79.
- Monday, Sept. 15: Chance of showers early, then mostly sunny, high 82.
