Weather in Alton, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Alton
Today |
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Temperature: 85°F Wind Speed: 5 to 15 mph Wind Direction: SE Forecast: Patchy fog before 9am, then isolated rain showers. Mostly sunny, with a high near 85. Southeast wind 5 to 15 mph. Chance of precipitation is 20%. |
Tonight |
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Temperature: 67°F Wind Speed: 8 to 14 mph Wind Direction: SE Forecast: Isolated rain showers before 7pm, then isolated showers and thunderstorms between 7pm and 8pm. Mostly cloudy, with a low around 67. Southeast wind 8 to 14 mph. Chance of precipitation is 20%. |
Thursday |
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Temperature: 91°F Wind Speed: 8 to 17 mph Wind Direction: S Forecast: Isolated showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. South wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%. |
Thursday Night |
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Temperature: 64°F Wind Speed: 6 to 13 mph Wind Direction: SW Forecast: Isolated showers and thunderstorms before 7pm. Partly cloudy, with a low around 64. Southwest wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%. |
Friday |
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Temperature: 89°F Wind Speed: 6 to 14 mph Wind Direction: S Forecast: A chance of showers and thunderstorms after 1pm. Sunny. High near 89, with temperatures falling to around 85 in the afternoon. South wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. |
Friday Night |
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Temperature: 61°F Wind Speed: 7 to 13 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms between 10pm and 1am. Mostly clear, with a low around 61. Chance of precipitation is 40%. |
Saturday |
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Temperature: 80°F Wind Speed: 7 to 12 mph Wind Direction: W Forecast: Sunny, with a high near 80. |
Saturday Night |
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Temperature: 59°F Wind Speed: 2 to 8 mph Wind Direction: NW Forecast: A slight chance of rain showers after 1am. Partly cloudy, with a low around 59. Chance of precipitation is 20%. |
Sunday |
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Temperature: 79°F Wind Speed: 3 to 7 mph Wind Direction: E Forecast: A chance of rain showers. Partly sunny, with a high near 79. Chance of precipitation is 30%. |
Sunday Night |
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Temperature: 63°F Wind Speed: 8 mph Wind Direction: E Forecast: A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%. |
Monday |
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Temperature: 79°F Wind Speed: 9 to 14 mph Wind Direction: SE Forecast: Showers and thunderstorms likely. Mostly cloudy, with a high near 79. Chance of precipitation is 60%. |
Monday Night |
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Temperature: 67°F Wind Speed: 10 to 14 mph Wind Direction: SE Forecast: A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 67. Chance of precipitation is 70%. |
Tuesday |
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Temperature: 81°F Wind Speed: 14 mph Wind Direction: S Forecast: Showers and thunderstorms likely. Partly sunny, with a high near 81. Chance of precipitation is 70%. |
Tuesday Night |
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Temperature: 59°F Wind Speed: 8 to 13 mph Wind Direction: SW Forecast: Showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 70%. |