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Excessive Heat Warning issued July 21 at 4:32PM CDT until July 23 at 8:00PM CDT by NWS | ...Dangerous Heat Wave Through the Weekend... ...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 8 PM CDT SUNDAY... * TIMING...Through Sunday evening. * HEAT INDEX VALUES...Between 110 and 115 are expected each afternoon and early evening. * IMPACTS...The combination of hot temperatures and high | read more
Weather for Alton, IL
Last Updated on Jul 21 2017, 8:45 pm CDT
Right Now
nbkn.png
Mostly Cloudy
86°
Dew Point: 75°
Humidity: 70%
Pressure: 29.88 in
Visibility: 10.00 miles
Winds: Calm
By the Hour
Dewpoint: 73°
10:00 PM
http://forecast.weather.gov/images/wtf/nfew.jpg
87°
Humidity: 63%
Wind: 7 mph
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6 Day Forecast
Saturday
High 95°
Low 76°
Sunday
High 90°
Low 71°
Monday
High 88°
Low 69°
Tuesday
High 93°
Low 71°
Wednesday
High 96°
Low 73°
Thursday
High 90°
Low 72°
    By the Hour
    Dewpoint: 73°
    1:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    84°
    Humidity: 69%
    Wind: 6 mph
    Dewpoint: 72°
    4:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    80°
    Humidity: 76%
    Wind: 6 mph
    Dewpoint: 73°
    7:00 AM
    http://forecast.weather.gov/images/wtf/few.jpg
    80°
    Humidity: 79%
    Wind: 7 mph
    Dewpoint: 75°
    10:00 AM
    http://forecast.weather.gov/images/wtf/few.jpg
    90°
    Humidity: 61%
    Wind: 11 mph
    Dewpoint: 73°
    1:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    98°
    Humidity: 45%
    Wind: 13 mph
    Dewpoint: 71°
    4:00 PM
    http://forecast.weather.gov/images/wtf/scttsra20.jpg
    102°
    Humidity: 38%
    Wind: 12 mph
    Dewpoint: 71°
    7:00 PM
    http://forecast.weather.gov/images/wtf/scttsra20.jpg
    97°
    Humidity: 43%
    Wind: 7 mph
    Dewpoint: 73°
    10:00 PM
    http://forecast.weather.gov/images/wtf/ntsra30.jpg
    86°
    Humidity: 66%
    Wind: 6 mph
    By the Hour
    Dewpoint: 72°
    1:00 AM
    http://forecast.weather.gov/images/wtf/ntsra30.jpg
    82°
    Humidity: 71%
    Wind: 4 mph
    Dewpoint: 72°
    4:00 AM
    http://forecast.weather.gov/images/wtf/ntsra30.jpg
    78°
    Humidity: 82%
    Wind: 4 mph
    Dewpoint: 72°
    7:00 AM
    http://forecast.weather.gov/images/wtf/bkn.jpg
    77°
    Humidity: 85%
    Wind: 5 mph
    Dewpoint: 73°
    10:00 AM
    http://forecast.weather.gov/images/wtf/bkn.jpg
    85°
    Humidity: 67%
    Wind: 4 mph
    Dewpoint: 69°
    1:00 PM
    http://forecast.weather.gov/images/wtf/bkn.jpg
    93°
    Humidity: 46%
    Wind: 4 mph
    Dewpoint: 67°
    4:00 PM
    http://forecast.weather.gov/images/wtf/bkn.jpg
    95°
    Humidity: 40%
    Wind: 5 mph
    Dewpoint: 68°
    7:00 PM
    http://forecast.weather.gov/images/wtf/sct.jpg
    93°
    Humidity: 44%
    Wind: 4 mph
    Dewpoint: 71°
    10:00 PM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    81°
    Humidity: 72%
    Wind: 3 mph
    By the Hour
    Dewpoint: 69°
    1:00 AM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    76°
    Humidity: 79%
    Wind: 2 mph
    Dewpoint: 68°
    4:00 AM
    http://forecast.weather.gov/images/wtf/nfew.jpg
    72°
    Humidity: 87%
    Wind: 4 mph
    Dewpoint: 68°
    7:00 AM
    http://forecast.weather.gov/images/wtf/sct.jpg
    73°
    Humidity: 84%
    Wind: 4 mph
    Dewpoint: 69°
    10:00 AM
    http://forecast.weather.gov/images/wtf/few.jpg
    82°
    Humidity: 64%
    Wind: 5 mph
    Dewpoint: 67°
    1:00 PM
    http://forecast.weather.gov/images/wtf/sct.jpg
    89°
    Humidity: 49%
    Wind: 5 mph
    Dewpoint: 66°
    4:00 PM
    http://forecast.weather.gov/images/wtf/few.jpg
    89°
    Humidity: 47%
    Wind: 6 mph
    Dewpoint: 66°
    7:00 PM
    http://forecast.weather.gov/images/wtf/sct.jpg
    86°
    Humidity: 51%
    Wind: 6 mph
    By the Hour
    Dewpoint: 65°
    1:00 AM
    http://forecast.weather.gov/images/wtf/nsct.jpg
    74°
    Humidity: 74%
    Wind: 4 mph
    Dewpoint: 65°
    7:00 AM
    http://forecast.weather.gov/images/wtf/sct.jpg
    71°
    Humidity: 81%
    Wind: 5 mph
    Dewpoint: 67°
    1:00 PM
    http://forecast.weather.gov/images/wtf/scttsra30.jpg
    86°
    Humidity: 53%
    Wind: 4 mph
    Dewpoint: 66°
    7:00 PM
    http://forecast.weather.gov/images/wtf/scttsra30.jpg
    83°
    Humidity: 57%
    Wind: 5 mph
    By the Hour
    Dewpoint: 67°
    1:00 AM
    http://forecast.weather.gov/images/wtf/nscttsra20.jpg
    74°
    Humidity: 79%
    Wind: 3 mph
    Dewpoint: 67°
    7:00 AM
    http://forecast.weather.gov/images/wtf/sct.jpg
    73°
    Humidity: 81%
    Wind: 4 mph
    Dewpoint: 70°
    1:00 PM
    http://forecast.weather.gov/images/wtf/scttsra20.jpg
    89°
    Humidity: 54%
    Wind: 4 mph
    Dewpoint: 69°
    7:00 PM
    http://forecast.weather.gov/images/wtf/sct.jpg
    87°
    Humidity: 56%
    Wind: 5 mph
    By the Hour
    Dewpoint: 70°
    1:00 AM
    http://forecast.weather.gov/images/wtf/nscttsra20.jpg
    76°
    Humidity: 81%
    Wind: 4 mph
    Dewpoint: 70°
    7:00 AM
    http://forecast.weather.gov/images/wtf/sct.jpg
    74°
    Humidity: 87%
    Wind: 3 mph
    Dewpoint: 71°
    1:00 PM
    http://forecast.weather.gov/images/wtf/scttsra20.jpg
    91°
    Humidity: 52%
    Wind: 5 mph
    Dewpoint: 71°
    7:00 PM
    http://forecast.weather.gov/images/wtf/tsra20.jpg
    87°
    Humidity: 59%
    Wind: 5 mph
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