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Round Grove, IL Weather Forecast
Round Grove, IL Weather Forecast Date: 126 PM CDT Sun Oct 11 2026
The area/counties/county of: Whiteside, including the city of Sterling.or toggle through each period.
This Afternoon... Sunny. Near steady temperature in the upper 70s. South winds 5 to 10 mph.
Tonight... Mostly clear in the evening, then becoming partly cloudy. Not as cool with lows in the mid 60s. South winds 5 to 10 mph.
Columbus Day... Sunny. Highs in the upper 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Monday Night... Clear. Lows in the upper 60s. Southwest winds 10 to 15 mph.
Tuesday... Sunny. Highs in the lower 80s. West winds 5 to 10 mph.
Tuesday Night... Showers likely. Lows around 60. Chance of rain 70%.
Wednesday... Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Not as warm with highs in the lower 70s. Chance of rain 40%.
Wednesday Night... Mostly cloudy. Lows in the mid 50s.
Thursday... Showers likely. Highs in the upper 60s. Chance of rain 70%.
Thursday Night... Mostly cloudy. A chance of showers in the evening. Lows in the upper 40s. Chance of rain 40%.
Friday... Partly sunny and breezy. Highs in the upper 50s.
Friday Night... Partly cloudy in the evening, then clearing. Cooler with lows in the mid 30s.
POP = Probability of Precipitation
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