Green Bay, Wisconsin – Thunderstorms are expected to roll into Green Bay Friday night, July 18th, bringing a 60% chance of rain that could snarl traffic and disrupt weekend plans.
According to the National Weather Service, showers could begin as early as 10 p.m., with a stronger line of storms possible after 1 a.m. Saturday. Winds from the south at 3 to 6 mph and muggy overnight conditions will keep roads slick well into early Saturday. If you’re planning to travel along I-41 or attend any Friday night outdoor events, prepare for delays and bring rain gear.
Friday will remain mostly sunny until the evening, with temperatures peaking near 76°F. Heading into Saturday, storm chances stay elevated at 40%, keeping skies mostly cloudy but offering occasional dry stretches. Highs will climb to around 77°F, making it a humid, storm-interrupted summer day.
By Sunday, skies clear slightly with highs near 77°F and only a 20% chance of evening showers returning. Monday looks drier overall but brings an unstable pattern — with chances for showers and thunderstorms Monday night into Tuesday. Expect highs between 80°F and 86°F through the midweek stretch.
📅 Five-Day Forecast for Green Bay (July 18–23):
- Friday (July 18): Mostly sunny, high near 76°F. Storms likely overnight.
- Saturday: Scattered thunderstorms, high near 77°F.
- Sunday: Mostly sunny, slight rain chance overnight. High near 77°F.
- Monday: Afternoon rain chance, high near 80°F.
- Tuesday: Thunderstorms possible, high near 86°F.
- Wednesday: Showers and storms possible, high near 89°F.
⚠️ Summer storm alerts remain in effect through Saturday. Stay tuned for updates and avoid unnecessary travel during Friday night’s storm window.
