| NWS Forecast for: Winnebago County Issued by: National Weather Service Chicago, IL Last Update: 320 AM CDT Thu Aug 28 2025 | |
Today: Mostly cloudy through mid morning, then becoming partly cloudy. Isolated showers through mid morning. A slight chance of showers and thunderstorms late in the afternoon. Highs in the upper 70s. West winds around 5 mph, becoming north in the afternoon. Chance of precipitation 20 percent. Tonight: Partly cloudy early in the evening, then becoming mostly clear. Lows in the lower 50s. East winds 5 to 10 mph. Friday: Partly cloudy. Highs in the lower 70s. East winds around 5 mph. Friday Night: Partly cloudy through the early overnight, then becoming mostly cloudy. Lows in the lower 50s. East winds around 5 mph. Saturday: Mostly cloudy through mid afternoon, then becoming partly cloudy. Highs in the lower 70s. East winds around 5 mph. Saturday Night: Partly cloudy. Lows in the lower 50s. Sunday: Mostly sunny. Highs in the mid 70s. Sunday Night: Mostly clear. Lows in the lower 50s. Labor Day: Partly cloudy. Highs in the upper 70s. Monday Night: Partly cloudy. Lows in the mid 50s. Tuesday: Partly cloudy. Highs in the upper 70s. Tuesday Night: Partly cloudy. Lows in the upper 50s. Wednesday: Mostly cloudy with a chance of showers. Highs in the mid 70s. Chance of precipitation 40 percent. | |
| Zone Forecast: Winnebago County | |
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