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Weather for Alton, IL
Last Updated on Nov 18 2017, 4:45 pm CST
Right Now
ovc.png
Overcast
41°
Dew Point: 41°
Humidity: 100%
Pressure: 29.78 in
Visibility: 7.00 miles
Winds: from the Northwest at 12.7 gusting to 21.9 MPH (11 gusting to 19 KT)
By the Hour
Dewpoint: 36°
6:00 PM
http://forecast.weather.gov/images/wtf/nbkn.jpg
42°
Humidity: 79%
Wind: 21 mph
Dewpoint: 32°
9:00 PM
http://forecast.weather.gov/images/wtf/nskc.jpg
40°
Humidity: 73%
Wind: 17 mph
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6 Day Forecast
Sunday
High 44°
Low 31°
Monday
High 59°
Low 38°
Tuesday
High 53°
Low 26°
Wednesday
High 39°
Low 26°
Thursday
High 46°
Low 32°
Friday
High 55°
Low 41°
    By the Hour
    Dewpoint: 29°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    37°
    Humidity: 72%
    Wind: 14 mph
    Dewpoint: 24°
    3:00 AM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    31°
    Humidity: 75%
    Wind: 13 mph
    Dewpoint: 22°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    29°
    Humidity: 75%
    Wind: 11 mph
    Dewpoint: 21°
    9:00 AM
    http://forecast.weather.gov/images/wtf/skc.jpg
    32°
    Humidity: 64%
    Wind: 12 mph
    Dewpoint: 18°
    12:00 PM
    http://forecast.weather.gov/images/wtf/skc.jpg
    39°
    Humidity: 42%
    Wind: 10 mph
    Dewpoint: 17°
    3:00 PM
    http://forecast.weather.gov/images/wtf/skc.jpg
    44°
    Humidity: 34%
    Wind: 10 mph
    Dewpoint: 21°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    35°
    Humidity: 56%
    Wind: 5 mph
    Dewpoint: 23°
    9:00 PM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    33°
    Humidity: 66%
    Wind: 4 mph
    By the Hour
    Dewpoint: 24°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    33°
    Humidity: 70%
    Wind: 4 mph
    Dewpoint: 25°
    3:00 AM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    32°
    Humidity: 75%
    Wind: 5 mph
    Dewpoint: 26°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    32°
    Humidity: 78%
    Wind: 5 mph
    Dewpoint: 29°
    9:00 AM
    http://forecast.weather.gov/images/wtf/few.jpg
    42°
    Humidity: 60%
    Wind: 9 mph
    Dewpoint: 31°
    12:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    55°
    Humidity: 40%
    Wind: 11 mph
    Dewpoint: 30°
    3:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    58°
    Humidity: 34%
    Wind: 11 mph
    Dewpoint: 31°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    48°
    Humidity: 52%
    Wind: 10 mph
    Dewpoint: 31°
    9:00 PM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    45°
    Humidity: 58%
    Wind: 9 mph
    By the Hour
    Dewpoint: 32°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    42°
    Humidity: 67%
    Wind: 7 mph
    Dewpoint: 31°
    3:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    40°
    Humidity: 70%
    Wind: 7 mph
    Dewpoint: 32°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    38°
    Humidity: 78%
    Wind: 6 mph
    Dewpoint: 33°
    9:00 AM
    http://forecast.weather.gov/images/wtf/few.jpg
    46°
    Humidity: 60%
    Wind: 9 mph
    Dewpoint: 34°
    12:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    52°
    Humidity: 50%
    Wind: 9 mph
    Dewpoint: 29°
    3:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    51°
    Humidity: 42%
    Wind: 10 mph
    Dewpoint: 25°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    41°
    Humidity: 52%
    Wind: 9 mph
    By the Hour
    Dewpoint: 20°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    32°
    Humidity: 61%
    Wind: 6 mph
    Dewpoint: 17°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    26°
    Humidity: 68%
    Wind: 6 mph
    Dewpoint: 18°
    12:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    37°
    Humidity: 46%
    Wind: 6 mph
    Dewpoint: 20°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    33°
    Humidity: 59%
    Wind: 5 mph
    By the Hour
    Dewpoint: 20°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    29°
    Humidity: 69%
    Wind: 3 mph
    Dewpoint: 20°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    27°
    Humidity: 74%
    Wind: 3 mph
    Dewpoint: 23°
    12:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    41°
    Humidity: 49%
    Wind: 4 mph
    Dewpoint: 26°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    38°
    Humidity: 62%
    Wind: 4 mph
    By the Hour
    Dewpoint: 26°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    34°
    Humidity: 72%
    Wind: 3 mph
    Dewpoint: 28°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    33°
    Humidity: 81%
    Wind: 4 mph
    Dewpoint: 34°
    12:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    49°
    Humidity: 56%
    Wind: 6 mph
    Dewpoint: 38°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    46°
    Humidity: 74%
    Wind: 9 mph
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