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Current Weather Conditions for Alton, IL

Mostly cloudy. Low around 36, with temperatures rising to around 41 overnight. West wind around 6 mph.
57°F

Conditions

Wind: 8 mph W
Humidity: 42%
Probability of Precipitation: 1%

Hourly Forcast (next 12 hours)

11 PM 12 AM 1 AM 2 AM 3 AM 4 AM 5 AM 6 AM 7 AM 8 AM 9 AM 10 AM 11 AM
57° 52° 50° 48° 47° 46° 45° 44° 43° 42° 41° 41° 40°

Upcoming Week

Day Forecast High Low
Tonight
Mostly Cloudy
Mostly cloudy. Low around 36, with temperatures rising to around 41 overnight. West wind around 6 mph.
57°F 47°F
Saturday
Mostly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after 1pm. Mostly cloudy, with a high near 52. West wind 3 to 9 mph. Chance of precipitation is 20%.
57°F 47°F
Saturday Night
Slight Chance Rain Showers then Widespread Frost
A slight chance of rain showers before 7pm, then widespread frost. Partly cloudy, with a low around 32. Northwest wind 2 to 6 mph. Chance of precipitation is 20%.
57°F 47°F
Sunday
Widespread Frost then Sunny
Widespread frost before 8am. Sunny. High near 55, with temperatures falling to around 50 in the afternoon. West wind 2 to 6 mph.
57°F 47°F
Sunday Night
Mostly Clear
Mostly clear, with a low around 37. South wind around 6 mph.
57°F 47°F
Monday
Sunny
Sunny. High near 64, with temperatures falling to around 58 in the afternoon.
57°F 47°F
Monday Night
Mostly Clear
Mostly clear, with a low around 37.
57°F 47°F
Tuesday
Mostly Sunny
Mostly sunny, with a high near 67.
57°F 47°F
Tuesday Night
Partly Cloudy
Partly cloudy, with a low around 49.
57°F 47°F
Wednesday
Sunny
Sunny, with a high near 69.
57°F 47°F
Wednesday Night
Mostly Clear
Mostly clear, with a low around 38.
57°F 47°F
Thursday
Sunny
Sunny, with a high near 62.
57°F 47°F
Thursday Night
Partly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after midnight. Partly cloudy, with a low around 45. Chance of precipitation is 20%.
57°F 47°F
Friday
Chance Rain Showers
A chance of rain showers. Partly sunny, with a high near 63. Chance of precipitation is 40%.
57°F 47°F
Data provided by weather.gov