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Weather for Alton, IL
Last Updated on Dec 6 2016, 10:49 am CST
Right Now
ovc.png
Overcast
39°
Dew Point: 33°
Humidity: 81%
Pressure: 29.90 in
Visibility: 8.00 miles
Winds: from the Northwest at 17.3 gusting to 25.3 MPH (15 gusting to 22 KT)
By the Hour
Dewpoint: 34°
12:00 PM
http://forecast.weather.gov/images/wtf/bkn.jpg
40°
Humidity: 79%
Wind: 13 mph
Dewpoint: 30°
3:00 PM
http://forecast.weather.gov/images/wtf/sct.jpg
42°
Humidity: 62%
Wind: 14 mph
Dewpoint: 24°
6:00 PM
http://forecast.weather.gov/images/wtf/nfew.jpg
35°
Humidity: 64%
Wind: 9 mph
Dewpoint: 22°
9:00 PM
http://forecast.weather.gov/images/wtf/nsct.jpg
32°
Humidity: 67%
Wind: 7 mph
Find Weather

5 Day Forecast
Wednesday
High 38°
Low 20°
Thursday
High 27°
Low 16°
Friday
High 28°
Low 18°
Saturday
High 36°
Low 30°
Sunday
High 42°
Low 29°
    By the Hour
    Dewpoint: 20°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    30°
    Humidity: 66%
    Wind: 6 mph
    Dewpoint: 20°
    3:00 AM
    http://forecast.weather.gov/images/wtf/nbkn.jpg
    29°
    Humidity: 69%
    Wind: 6 mph
    Dewpoint: 19°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nbkn.jpg
    26°
    Humidity: 75%
    Wind: 5 mph
    Dewpoint: 19°
    9:00 AM
    http://forecast.weather.gov/images/wtf/bkn.jpg
    30°
    Humidity: 63%
    Wind: 6 mph
    Dewpoint: 17°
    12:00 PM
    http://forecast.weather.gov/images/wtf/bkn.jpg
    36°
    Humidity: 45%
    Wind: 6 mph
    Dewpoint: 18°
    3:00 PM
    http://forecast.weather.gov/images/wtf/bkn.jpg
    38°
    Humidity: 44%
    Wind: 10 mph
    Dewpoint: 20°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nsn20.jpg
    33°
    Humidity: 58%
    Wind: 7 mph
    Dewpoint: 21°
    9:00 PM
    http://forecast.weather.gov/images/wtf/nsn20.jpg
    30°
    Humidity: 69%
    Wind: 9 mph
    By the Hour
    Dewpoint: 20°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nbkn.jpg
    27°
    Humidity: 74%
    Wind: 11 mph
    Dewpoint: 15°
    3:00 AM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    23°
    Humidity: 71%
    Wind: 13 mph
    Dewpoint: 12°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    20°
    Humidity: 71%
    Wind: 12 mph
    Dewpoint: 10°
    9:00 AM
    http://forecast.weather.gov/images/wtf/few.jpg
    21°
    Humidity: 62%
    Wind: 15 mph
    Dewpoint: 10°
    12:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    25°
    Humidity: 52%
    Wind: 18 mph
    Dewpoint: 9°
    3:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    27°
    Humidity: 46%
    Wind: 18 mph
    Dewpoint: 11°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    24°
    Humidity: 57%
    Wind: 12 mph
    By the Hour
    Dewpoint: 11°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    21°
    Humidity: 65%
    Wind: 10 mph
    Dewpoint: 10°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    18°
    Humidity: 70%
    Wind: 7 mph
    Dewpoint: 10°
    12:00 PM
    http://forecast.weather.gov/images/wtf/sct.jpg
    27°
    Humidity: 49%
    Wind: 9 mph
    Dewpoint: 12°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    26°
    Humidity: 55%
    Wind: 4 mph
    By the Hour
    Dewpoint: 12°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    22°
    Humidity: 65%
    Wind: 3 mph
    Dewpoint: 12°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nbkn.jpg
    20°
    Humidity: 71%
    Wind: 5 mph
    Dewpoint: 14°
    12:00 PM
    http://forecast.weather.gov/images/wtf/rasn20.jpg
    35°
    Humidity: 41%
    Wind: 11 mph
    Dewpoint: 19°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nsn20.jpg
    30°
    Humidity: 63%
    Wind: 12 mph
    By the Hour
    Dewpoint: 26°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nsn40.jpg
    32°
    Humidity: 78%
    Wind: 11 mph
    Dewpoint: 28°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nsn40.jpg
    32°
    Humidity: 85%
    Wind: 10 mph
    Dewpoint: 31°
    12:00 PM
    http://forecast.weather.gov/images/wtf/bkn.jpg
    42°
    Humidity: 65%
    Wind: 10 mph
    Dewpoint: 32°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nra30.jpg
    39°
    Humidity: 76%
    Wind: 12 mph
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