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City of Sterling, IllinoisSterling, IL 7-Day Night Weather Forecast
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Sterling, IL Weather Forecast
Sterling, IL Weather Forecast Date: 826 PM CDT Mon Sep 14 2026
The area/counties/county of: Whiteside, including the city of Sterling.or toggle through each period.
Tonight... Partly cloudy this evening, then mostly cloudy with showers with a chance of thunderstorms after midnight. Locally heavy rainfall possible after midnight. Much warmer. Near steady temperature in the upper 60s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90%.
Tuesday... Mostly cloudy. Showers with a chance of thunderstorms in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. More humid with highs in the upper 70s. Southwest winds around 10 mph, becoming west in the afternoon. Chance of rain 90%.
Tuesday Night... Mostly cloudy. A chance of showers. Lows around 60. North winds around 5 mph. Chance of rain 50%.
Wednesday... Showers, mainly in the morning. Highs in the mid 70s. East winds 5 to 10 mph. Chance of rain 80%.
Wednesday Night... Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 70%.
Thursday... Showers likely in the morning. Highs in the lower 80s. Chance of rain 70%.
Thursday Night... Mostly cloudy with a 40% chance of showers. Lows in the mid 60s.
Friday... Mostly cloudy in the morning, then becoming partly sunny. A 50% chance of showers. Highs in the lower 80s.
Friday Night... Partly cloudy. A chance of showers after midnight. Lows in the upper 60s. Chance of rain 40%.
Saturday... Mostly sunny with a chance of showers. Highs in the mid 80s. Chance of rain 50%.
Saturday Night... Mostly cloudy. A chance of showers. Lows in the mid 60s. Highs in the upper 70s. Chance of rain 50%.
Sunday... Mostly cloudy. A chance of showers. Lows in the mid 60s. Highs in the upper 70s. Chance of rain 50%.
Sunday Night... Mostly cloudy with a chance of showers. Lows in the upper 50s. Chance of rain 40%.
POP = Probability of Precipitation
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