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Lyndon, IL 7-Day Night Weather Forecast
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Lyndon, IL Weather Forecast
Lyndon, IL Weather Forecast Date: 531 AM CDT Sun Sep 13 2026
The area/counties/county of: Whiteside, including the city of Sterling.or toggle through each period.
Today... Partly sunny. A chance of showers this afternoon. Not as warm with highs in the lower 70s. North winds 5 to 10 mph. Chance of rain 50%.
Tonight... Mostly clear. Lows in the lower 50s. North winds around 5 mph, becoming northeast after midnight.
Monday... Sunny in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the mid 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 30%.
Monday Night... Partly cloudy in the evening, then mostly cloudy with 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 highs around 80. Southwest winds around 10 mph with gusts up to 20 mph, becoming northwest in the afternoon. Chance of rain 90%.
Tuesday Night... A chance of showers in the evening, then showers likely after midnight. Lows in the upper 50s. Chance of rain 70%.
Wednesday... Showers, mainly in the morning. Highs in the lower 70s. Chance of rain 80%.
Wednesday Night... A chance of showers in the evening, then showers with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 80%.
Thursday... Showers likely, mainly in the morning. Highs around 80. Chance of rain 70%.
Thursday Night... Mostly cloudy. A chance of showers. Lows in the lower 60s. Highs in the upper 70s. Chance of rain 50%.
Friday... Mostly cloudy. A chance of showers. Lows in the lower 60s. Highs in the upper 70s. Chance of rain 50%.
Friday Night... Mostly cloudy. A 50% chance of showers. Lows in the upper 50s. Highs in the mid 70s.
POP = Probability of Precipitation
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