Shop Local - Where you will always get the best deals in the riverbend.
Weather for Alton, IL
Last Updated on Jan 17 2018, 7:46 am CST
Right Now
skc.png
Clear
Dew Point: -2°
Humidity: 85%
Pressure: 30.68 in
Visibility: 10.00 miles
Winds: West at 4.6 MPH (4 KT)
By the Hour
Dewpoint: 2°
9:00 AM
http://forecast.weather.gov/images/wtf/few.jpg
Humidity: 91%
Wind: 7 mph
Dewpoint: 7°
12:00 PM
http://forecast.weather.gov/images/wtf/few.jpg
18°
Humidity: 61%
Wind: 10 mph
Dewpoint: 10°
3:00 PM
http://forecast.weather.gov/images/wtf/few.jpg
25°
Humidity: 52%
Wind: 10 mph
Dewpoint: 9°
6:00 PM
http://forecast.weather.gov/images/wtf/nfew.jpg
21°
Humidity: 59%
Wind: 7 mph
Dewpoint: 9°
9:00 PM
http://forecast.weather.gov/images/wtf/nskc.jpg
19°
Humidity: 65%
Wind: 9 mph
Find Weather

5 Day Forecast
Thursday
High 41°
Low 23°
Friday
High 49°
Low 33°
Saturday
High 51°
Low 43°
Sunday
High 56°
Low 37°
Monday
High 43°
Low 26°
    By the Hour
    Dewpoint: 8°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    18°
    Humidity: 64%
    Wind: 7 mph
    Dewpoint: 10°
    3:00 AM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    17°
    Humidity: 74%
    Wind: 7 mph
    Dewpoint: 8°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    16°
    Humidity: 70%
    Wind: 6 mph
    Dewpoint: 10°
    9:00 AM
    http://forecast.weather.gov/images/wtf/skc.jpg
    23°
    Humidity: 57%
    Wind: 7 mph
    Dewpoint: 15°
    12:00 PM
    http://forecast.weather.gov/images/wtf/skc.jpg
    36°
    Humidity: 42%
    Wind: 10 mph
    Dewpoint: 19°
    3:00 PM
    http://forecast.weather.gov/images/wtf/skc.jpg
    41°
    Humidity: 40%
    Wind: 9 mph
    Dewpoint: 17°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    33°
    Humidity: 51%
    Wind: 7 mph
    Dewpoint: 19°
    9:00 PM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    29°
    Humidity: 65%
    Wind: 7 mph
    By the Hour
    Dewpoint: 17°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    27°
    Humidity: 66%
    Wind: 6 mph
    Dewpoint: 17°
    3:00 AM
    http://forecast.weather.gov/images/wtf/nskc.jpg
    26°
    Humidity: 68%
    Wind: 5 mph
    Dewpoint: 16°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    23°
    Humidity: 74%
    Wind: 6 mph
    Dewpoint: 20°
    9:00 AM
    http://forecast.weather.gov/images/wtf/few.jpg
    29°
    Humidity: 69%
    Wind: 7 mph
    Dewpoint: 24°
    12:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    44°
    Humidity: 45%
    Wind: 9 mph
    Dewpoint: 28°
    3:00 PM
    http://forecast.weather.gov/images/wtf/skc.jpg
    49°
    Humidity: 44%
    Wind: 9 mph
    Dewpoint: 27°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    40°
    Humidity: 59%
    Wind: 9 mph
    By the Hour
    Dewpoint: 29°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    33°
    Humidity: 85%
    Wind: 7 mph
    Dewpoint: 32°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    34°
    Humidity: 92%
    Wind: 11 mph
    Dewpoint: 42°
    12:00 PM
    http://forecast.weather.gov/images/wtf/bkn.jpg
    50°
    Humidity: 74%
    Wind: 10 mph
    Dewpoint: 42°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nbkn.jpg
    44°
    Humidity: 92%
    Wind: 12 mph
    By the Hour
    Dewpoint: 43°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nra20.jpg
    44°
    Humidity: 96%
    Wind: 12 mph
    Dewpoint: 44°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nbkn.jpg
    45°
    Humidity: 96%
    Wind: 14 mph
    Dewpoint: 50°
    12:00 PM
    http://forecast.weather.gov/images/wtf/shra30.jpg
    56°
    Humidity: 80%
    Wind: 15 mph
    Dewpoint: 48°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nra30.jpg
    53°
    Humidity: 84%
    Wind: 19 mph
    By the Hour
    Dewpoint: 45°
    12:00 AM
    http://forecast.weather.gov/images/wtf/nra70.jpg
    50°
    Humidity: 83%
    Wind: 15 mph
    Dewpoint: 33°
    6:00 AM
    http://forecast.weather.gov/images/wtf/nbkn.jpg
    37°
    Humidity: 86%
    Wind: 20 mph
    Dewpoint: 32°
    12:00 PM
    http://forecast.weather.gov/images/wtf/bkn.jpg
    43°
    Humidity: 65%
    Wind: 21 mph
    Dewpoint: 27°
    6:00 PM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    38°
    Humidity: 64%
    Wind: 21 mph
Interactive Radar Map
Wx Observations
Station Markers
Type:
Elev:
Google Traffic

Set Layer Opacity
 
Opacity
Preferences

Click map to view:
Search for location:
Find:
Enter a place name (i.e. city, state, postal code, etc.) and click "go" for a new location.
Data Compliments of:
NOAA Wunderground Yahoo!

Colored Legend for rainfall intensity    Colored Legend for mixed precipitation intensity    Colored Legend for snowfall intensity
© OpenStreetMap contributors