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Current Weather Conditions for Alton, IL

Isolated showers and thunderstorms after 5pm. Partly sunny. High near 90, with temperatures falling to around 86 in the afternoon. Southwest wind around 18 mph. Chance of precipitation is 20%.
89°F

Conditions

Wind: 18 mph SW
Humidity: 56%
Probability of Precipitation: 7%

Hourly Forcast (next 12 hours)

7 PM 8 PM 9 PM 10 PM 11 PM 12 AM 1 AM 2 AM 3 AM 4 AM 5 AM 6 AM 7 AM
89° 90° 90° 86° 86° 82° 78° 74° 72° 69° 68° 66° 64°

Upcoming Week

Day Forecast High Low
This Afternoon
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms after 5pm. Partly sunny. High near 90, with temperatures falling to around 86 in the afternoon. Southwest wind around 18 mph. Chance of precipitation is 20%.
90°F 61°F
Tonight
Isolated Showers And Thunderstorms then Mostly Clear
Isolated showers and thunderstorms before 7pm. Mostly clear, with a low around 60. Southwest wind 6 to 17 mph. Chance of precipitation is 20%.
90°F 61°F
Friday
Sunny then Scattered Showers And Thunderstorms
Scattered showers and thunderstorms after 1pm. Sunny. High near 87, with temperatures falling to around 82 in the afternoon. Southwest wind 6 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 40%.
90°F 61°F
Friday Night
Isolated Showers And Thunderstorms then Mostly Clear
Isolated showers and thunderstorms before 7pm. Mostly clear, with a low around 56. West wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
90°F 61°F
Saturday
Sunny
Sunny, with a high near 76. West wind 10 to 14 mph.
90°F 61°F
Saturday Night
Partly Cloudy
Partly cloudy, with a low around 57.
90°F 61°F
Sunday
Slight Chance Rain Showers
A slight chance of rain showers after 7am. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
90°F 61°F
Sunday Night
Chance Showers And Thunderstorms
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.
90°F 61°F
Monday
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
90°F 61°F
Monday Night
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
90°F 61°F
Tuesday
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a high near 80. Chance of precipitation is 80%.
90°F 61°F
Tuesday Night
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 80%.
90°F 61°F
Wednesday
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 76. Chance of precipitation is 40%.
90°F 61°F
Wednesday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
90°F 61°F
Data provided by weather.gov