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Irene, IL 7-Day Night Weather Forecast
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Irene, IL Weather Forecast
Irene, IL Weather Forecast Date: 121 AM CDT Fri Sep 18 2026
The area/counties/county of: Winnebago, including the city of Rockford.or toggle through each period.
Rest of Tonight... Cloudy. Lows in the lower 60s. Northeast winds around 5 mph.
Friday... Mostly cloudy. A slight chance of showers in the late morning and afternoon. Highs in the lower 70s. East winds 10 to 15 mph. Chance of precipitation 20%.
Friday Night... Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then showers with thunderstorms likely after midnight. Locally heavy rainfall possible late. Lows in the upper 50s. East winds 10 to 15 mph. Chance of precipitation 90%.
Saturday... Thunderstorms likely in the morning. Showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Southeast winds 10 to 15 mph, becoming east 5 to 10 mph in the afternoon. Chance of precipitation near 100%.
Saturday Night... A chance of thunderstorms in the evening. Showers. A slight chance of thunderstorms after midnight. Lows in the upper 50s. Northeast winds 5 to 10 mph. Chance of precipitation 90%.
Sunday... Mostly cloudy with a slight chance of thunderstorms. Showers likely, mainly in the morning. Highs in the mid 60s. Chance of precipitation 70%.
Sunday Night... Mostly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows around 50. Chance of precipitation 50%.
Monday... Cloudy with a 50% chance of showers. Highs in the lower 60s.
Monday Night... Mostly cloudy with a 40% chance of showers. Lows in the upper 40s.
Tuesday... Mostly cloudy. Highs in the lower 60s.
Tuesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 40s.
Wednesday... Partly cloudy in the morning, then becoming mostly cloudy. Highs in the mid 60s.
Wednesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 40s.
POP = Probability of Precipitation
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