7-Day Zone Forecast for Winnebago County (Text-Only)
NWS Forecast for: Winnebago County
Issued by: National Weather Service Chicago, IL
Last Update: 1026 AM CDT Thu Jul 2 2026




Rest Of Today: Partly cloudy. A slight chance of showers and thunderstorms late. Hot. Highs in the lower 90s. Southeast winds 5 to 10 mph, increasing to southwest 10 to 15 mph with gusts up to 25 mph in the afternoon. Chance of precipitation 20 percent. Heat index values up to 103.

Tonight: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Humid with lows in the lower 70s. South winds 5 to 10 mph. Chance of precipitation 50 percent.

Friday: Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of precipitation 70 percent.

Friday Night: Thunderstorms likely in the evening. Showers likely. A chance of thunderstorms after midnight. Humid with lows in the upper 60s. Southwest winds 5 to 10 mph. Chance of precipitation 70 percent.

Independence Day: Mostly cloudy. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Humid with highs in the mid 80s. South winds 5 to 10 mph, becoming southwest in the afternoon. Chance of precipitation 70 percent.

Saturday Night: Mostly cloudy. Showers and thunderstorms likely, mainly in the evening. Lows in the mid 60s. Chance of precipitation 70 percent.

Sunday: Mostly cloudy. Highs in the mid 80s.

Sunday Night: Partly cloudy in the evening, then clearing. Lows in the lower 60s.

Monday: Partly cloudy. Highs in the mid 80s.

Monday Night: Partly cloudy. Lows in the lower 60s.

Tuesday: Partly cloudy. Highs in the mid 80s.

Tuesday Night: Partly cloudy. Lows in the mid 60s.

Wednesday: Partly cloudy. Highs in the mid 80s.







Zone Forecast: Winnebago County

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