10 Day Weather - Alton, IL
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Night70% Chance of Storms66°Night DetailsPartly cloudy late this evening then becoming mostly cloudy. Showers likely with a slight chance of thunderstorms. Lows in the mid 60s. South winds around 5 mph. Chance of rain 70 percent.
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SaturdayThunderstorms80°Night50% Chance of Storms71°Day DetailsMostly cloudy. Showers with a chance of thunderstorms in the morning then a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent.Night DetailsMostly cloudy with a chance of showers and thunderstorms. Lows in the mid 60s. North winds 5 to 10 mph. Chance of rain 50 percent.
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Sunday50% Chance of Storms80°NightPartly Cloudy62°Day DetailsMostly cloudy with a chance of showers and thunderstorms in the morning then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. North winds around 5 mph. Chance of rain 50 percent.Night DetailsPartly cloudy with a slight chance of showers in the evening then mostly clear after midnight. Lows in the upper 50s. North winds around 5 mph. Chance of rain 20 percent.
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MondayPartly Cloudy79°NightPartly Cloudy62°Day DetailsPartly cloudy. Highs around 80. Lows in the upper 50s.Night DetailsPartly cloudy. Highs around 80. Lows in the upper 50s.
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TuesdayPartly Cloudy81°NightPartly Cloudy69°Day DetailsPartly cloudy. Highs around 80. Lows in the upper 50s.Night DetailsPartly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 20 percent.
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WednesdayMostly Sunny86°NightMostly Clear73°Day DetailsMostly clear. Highs in the mid 80s. Lows in the mid 60s.Night DetailsMostly clear. Highs in the mid 80s. Lows in the mid 60s.
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ThursdaySunny92°NightPartly Cloudy75°Day DetailsSunny. Highs in the lower 90s.Night DetailsMostly clear in the evening then becoming partly cloudy. Lows in the upper 60s.
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FridaySunny89°NightClear74°Friday 6/14Day89°SunnyNight74°ClearDay DetailsSunny. Highs around 90.Night DetailsClear. Low temperature around 74F. Dew point will be around 66F with an average humidity of 64%. Winds will be 2 mph from the SE.
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SaturdaySunny90°NightClear76°Saturday 6/15Day90°SunnyNight76°ClearDay DetailsSunny. High temperature around 90F. Dew point will be around 64F with an average humidity of 53%. Winds will be 5 mph from the S.Night DetailsClear. Low temperature around 76F. Dew point will be around 67F with an average humidity of 62%. Winds will be 6 mph from the S.
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Sunday30% Chance of Rain91°NightClear78°Sunday 6/16Day91°30% Chance of RainNight78°ClearDay DetailsSunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 91F. Dew point will be around 67F with an average humidity of 55%. Winds will be 8 mph from the S.Night DetailsClear. Low temperature around 78F. Dew point will be around 70F with an average humidity of 63%. Winds will be 7 mph from the S.