| NWS Forecast for: Winnebago County Issued by: National Weather Service Green Bay, WI Last Update: 147 PM CDT Mon Jun 29 2026 |  |
This Afternoon: Hot and humid. Partly cloudy. Highs in the lower 90s. South wind 10 to 15 mph. Heat indices to 107. Tonight: Muggy. Clear in the evening then becoming partly cloudy. Lows in the middle 70s. South wind 10 to 15 mph. Highest heat index readings to 106 in the evening. Tuesday: Hot and humid. Mostly sunny. Highs in the lower 90s. Southwest wind 10 to 15 mph. Heat indices to 107. Tuesday Night: Muggy. Partly cloudy with a 50 percent chance of showers and thunderstorms. Lows in the middle 70s. Southwest wind 10 to 15 mph. Highest heat index readings to 105 in the evening. Wednesday: Hot and humid. Mostly sunny with a chance of showers. Highs in the lower 90s. Southwest wind 10 to 15 mph. Chance of rain 40 percent. Heat indices to 101. Wednesday Night: Muggy. Showers likely and a chance of thunderstorms. Lows in the middle 70s. Chance of rain 70 percent. Thursday: Hot and humid. Showers likely and a chance of thunderstorms. Highs around 90. Chance of rain 60 percent. Thursday Night And Friday: Showers likely and a chance of thunderstorms. Lows around 70. Highs in the middle 80s. Chance of rain 70 percent. Friday Night: Muggy. Showers likely and a chance of thunderstorms. Lows in the upper 60s. Chance of rain 60 percent. Independence Day: Humid. Partly cloudy with a 50 percent chance of showers and thunderstorms. Highs in the middle 80s. Saturday Night: Muggy. Showers likely and a chance of thunderstorms. Lows in the upper 60s. Chance of rain 60 percent. Sunday: Humid. Partly sunny with a 50 percent chance of showers and thunderstorms. Highs in the lower 80s. | |
| Zone Forecast: Winnebago County | |
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