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Current Weather Conditions for Alton, IL

Mostly cloudy, with a low around 66. South wind around 14 mph, with gusts as high as 24 mph.
67°F

Conditions

Wind: 14 mph S
Humidity: 81%
Probability of Precipitation: 12%

Hourly Forcast (next 12 hours)

10 AM 11 AM 12 PM 1 PM 2 PM 3 PM 4 PM 5 PM 6 PM 7 PM 8 PM 9 PM 10 PM
67° 66° 66° 67° 69° 71° 72° 73° 73° 75° 76° 76° 76°

Upcoming Week

Day Forecast High Low
Overnight
Mostly Cloudy
Mostly cloudy, with a low around 66. South wind around 14 mph, with gusts as high as 24 mph.
72°F 55°F
Sunday
Chance Showers And Thunderstorms
A slight chance of rain showers between 9am and 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77. South wind 15 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
72°F 55°F
Sunday Night
Chance Showers And Thunderstorms then Showers And Thunderstorms
A chance of showers and thunderstorms before 9pm, then showers and thunderstorms between 9pm and 4am, then a chance of showers and thunderstorms. Cloudy, with a low around 62. South wind 12 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
72°F 55°F
Monday
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 75. Southwest wind around 13 mph. Chance of precipitation is 50%.
72°F 55°F
Monday Night
Chance Showers And Thunderstorms then Mostly Clear
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 53. Northwest wind 2 to 9 mph. Chance of precipitation is 40%.
72°F 55°F
Tuesday
Sunny
Sunny, with a high near 80.
72°F 55°F
Tuesday Night
Partly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
72°F 55°F
Wednesday
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
72°F 55°F
Wednesday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
72°F 55°F
Thursday
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly sunny, with a high near 82. Chance of precipitation is 70%.
72°F 55°F
Thursday Night
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
72°F 55°F
Friday
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 60%.
72°F 55°F
Friday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly cloudy, with a low around 52. Chance of precipitation is 50%.
72°F 55°F
Saturday
Slight Chance Rain Showers
A slight chance of rain showers. Mostly sunny, with a high near 72. Chance of precipitation is 20%.
72°F 55°F
Data provided by weather.gov