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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: 221 AM CDT Mon Sep 14 2026
The area/counties/county of: Whiteside, including the city of Sterling.or toggle through each period.
Today... Mostly sunny after midnight, then becoming mostly cloudy. Patchy fog after midnight. A slight chance of showers this afternoon. Highs in the mid 70s. East winds 5 to 10 mph with gusts up to 20 mph, becoming southeast 10 to 15 mph with gusts up to 25 mph this afternoon. Chance of rain 20%.
Tonight... Mostly cloudy. Showers likely with a chance of thunderstorms after midnight. Much warmer with lows in the upper 60s. South winds 15 to 20 mph. Chance of rain 70%.
Tuesday... Showers with a chance of thunderstorms in the morning, then a chance of showers in the afternoon. More humid with highs around 80. Southwest winds around 10 mph with gusts up to 20 mph, becoming west in the afternoon. Chance of rain 90%.
Tuesday Night... Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows around 60. North winds 5 to 10 mph. Chance of rain 70%.
Wednesday... Showers. Highs in the mid 70s. East winds 5 to 10 mph. Chance of rain 90%.
Wednesday Night... A chance of showers and thunderstorms in the evening, then showers after midnight. Lows in the mid 60s. Chance of rain 80%.
Thursday... Showers likely in the morning. Highs around 80. Chance of rain 70%.
Thursday Night... Mostly cloudy. A chance of showers after midnight. Lows in the lower 60s. Chance of rain 40%.
Friday... Partly sunny in the morning, then becoming mostly cloudy. A chance of showers. Highs in the lower 80s. Chance of rain 50%.
Friday Night... Mostly cloudy in the evening, then becoming partly cloudy. A 50% chance of showers. Lows in the mid 60s.
Saturday... Showers likely. Highs in the upper 70s. Chance of rain 70%.
Saturday Night... Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50%.
POP = Probability of Precipitation
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