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Portland Corners, IL 7-Day Night Weather Forecast
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Portland Corners, IL Weather Forecast
Portland Corners, IL Weather Forecast Date: 501 PM CDT Tue Aug 04 2026
The area/counties/county of: Whiteside, including the city of Sterling.or toggle through each period.
Tonight... A chance of thunderstorms. A chance of showers this evening, then showers after midnight. Lows in the mid 60s. Southwest winds around 5 mph, becoming east after midnight. Chance of rain near 100%.
Wednesday... A chance of thunderstorms. Showers with highs in the mid 70s. West winds around 5 mph. Chance of rain 80%.
Wednesday Night... Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Humid with lows in the lower 60s. North winds around 5 mph. Chance of rain 70%.
Thursday... Mostly sunny. Humid with highs in the upper 70s. Northeast winds around 5 mph.
Thursday Night... Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the lower 60s. Light and variable winds.
Friday... Mostly sunny. Highs in the lower 80s.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s.
Saturday... Mostly sunny. Highs in the lower 80s.
Saturday Night... Mostly clear in the evening, then partly cloudy with a chance of showers after midnight. Lows in the mid 60s. Chance of rain 40%.
Sunday... Partly sunny. Highs in the mid 80s.
Sunday Night... Mostly clear in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 40%.
Monday... A chance of showers in the morning. Partly sunny. Highs in the mid 80s. Chance of rain 50%.
Monday Night... Partly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 40%.
POP = Probability of Precipitation
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