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Weather for Alton, IL
Last Updated on May 3 2016, 6:55 am CDT
Right Now
novc.png
Overcast
49°
Dew Point: 48°
Humidity: 96%
Pressure: 30.03 in
Visibility: 10.00 miles
Winds: West at 4.6 MPH (4 KT)
By the Hour
Dewpoint: 45°
10:00 AM
http://forecast.weather.gov/images/wtf/sct.jpg
59°
Humidity: 60%
Wind: 7 mph
Dewpoint: 42°
1:00 PM
http://forecast.weather.gov/images/wtf/shra20.jpg
63°
Humidity: 46%
Wind: 7 mph
Dewpoint: 40°
4:00 PM
http://forecast.weather.gov/images/wtf/shra20.jpg
65°
Humidity: 40%
Wind: 10 mph
Dewpoint: 43°
7:00 PM
http://forecast.weather.gov/images/wtf/few.jpg
63°
Humidity: 48%
Wind: 7 mph
Dewpoint: 44°
10:00 PM
http://forecast.weather.gov/images/wtf/nsct.jpg
57°
Humidity: 61%
Wind: 6 mph
Find Weather

5 Day Forecast
Wednesday
High 66°
Low 50°
Thursday
High 67°
Low 44°
Friday
High 75°
Low 47°
Saturday
High 80°
Low 55°
Sunday
High 80°
Low 59°
    By the Hour
    Dewpoint: 44°
    1:00 AM
    http://forecast.weather.gov/images/wtf/hi_nshwrs30.jpg
    55°
    Humidity: 67%
    Wind: 7 mph
    Dewpoint: 44°
    4:00 AM
    http://forecast.weather.gov/images/wtf/ntsra30.jpg
    53°
    Humidity: 71%
    Wind: 10 mph
    Dewpoint: 45°
    7:00 AM
    http://forecast.weather.gov/images/wtf/sct.jpg
    52°
    Humidity: 77%
    Wind: 11 mph
    Dewpoint: 45°
    10:00 AM
    http://forecast.weather.gov/images/wtf/sct.jpg
    59°
    Humidity: 59%
    Wind: 17 mph
    Dewpoint: 43°
    1:00 PM
    http://forecast.weather.gov/images/wtf/sct.jpg
    63°
    Humidity: 48%
    Wind: 18 mph
    Dewpoint: 39°
    4:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    65°
    Humidity: 39%
    Wind: 19 mph
    Dewpoint: 39°
    7:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    62°
    Humidity: 43%
    Wind: 14 mph
    Dewpoint: 40°
    10:00 PM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    54°
    Humidity: 59%
    Wind: 9 mph
    By the Hour
    Dewpoint: 39°
    1:00 AM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    51°
    Humidity: 63%
    Wind: 6 mph
    Dewpoint: 38°
    4:00 AM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    48°
    Humidity: 68%
    Wind: 7 mph
    Dewpoint: 39°
    7:00 AM
    http://forecast.weather.gov/images/wtf/skc.jpg
    47°
    Humidity: 74%
    Wind: 9 mph
    Dewpoint: 40°
    10:00 AM
    http://forecast.weather.gov/images/wtf/few.jpg
    57°
    Humidity: 53%
    Wind: 11 mph
    Dewpoint: 41°
    1:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    63°
    Humidity: 44%
    Wind: 13 mph
    Dewpoint: 42°
    4:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    66°
    Humidity: 41%
    Wind: 12 mph
    Dewpoint: 42°
    7:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    63°
    Humidity: 46%
    Wind: 10 mph
    By the Hour
    Dewpoint: 42°
    1:00 AM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    52°
    Humidity: 69%
    Wind: 4 mph
    Dewpoint: 44°
    7:00 AM
    http://forecast.weather.gov/images/wtf/skc.jpg
    50°
    Humidity: 80%
    Wind: 5 mph
    Dewpoint: 48°
    1:00 PM
    http://forecast.weather.gov/images/wtf/skc.jpg
    71°
    Humidity: 44%
    Wind: 6 mph
    Dewpoint: 52°
    7:00 PM
    http://forecast.weather.gov/images/wtf/skc.jpg
    73°
    Humidity: 48%
    Wind: 6 mph
    By the Hour
    Dewpoint: 51°
    1:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    62°
    Humidity: 67%
    Wind: 6 mph
    Dewpoint: 52°
    7:00 AM
    http://forecast.weather.gov/images/wtf/few.jpg
    59°
    Humidity: 78%
    Wind: 7 mph
    Dewpoint: 57°
    1:00 PM
    http://forecast.weather.gov/images/wtf/sct.jpg
    77°
    Humidity: 50%
    Wind: 13 mph
    Dewpoint: 58°
    7:00 PM
    http://forecast.weather.gov/images/wtf/scttsra10.jpg
    77°
    Humidity: 52%
    Wind: 11 mph
    By the Hour
    Dewpoint: 54°
    1:00 AM
    http://forecast.weather.gov/images/wtf/nscttsra20.jpg
    65°
    Humidity: 68%
    Wind: 7 mph
    Dewpoint: 54°
    7:00 AM
    http://forecast.weather.gov/images/wtf/tsra20.jpg
    60°
    Humidity: 81%
    Wind: 6 mph
    Dewpoint: 57°
    1:00 PM
    http://forecast.weather.gov/images/wtf/tsra30.jpg
    74°
    Humidity: 56%
    Wind: 9 mph
    Dewpoint: 57°
    7:00 PM
    http://forecast.weather.gov/images/wtf/tsra30.jpg
    74°
    Humidity: 55%
    Wind: 9 mph
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