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    1 - 5 of 90 days | All 90 days
    Next 5 Days
    • Early AM

      Sep 29

      44° Lo
      Mostly cloudy
      More
    • Today

      Sep 29

      64° /42°
      Mostly cloudy
      More
    • Fri

      Sep 30

      61° /47°F
      Cloudy, windy; a p.m. shower
    • Sat

      Oct 1

      57° /51°
      Cloudy with a bit of rain
      More
    • Sun

      Oct 2

      61° /52°
      Cloudy with a shower
      More
    Friday
    9am
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    Forecast Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Showers Cloudy
    Temp (°F) 49° 52° 54° 57° 59° 60° 60° 61°
    RealFeel® 41° 44° 48° 52° 54° 55° 53° 57°
    Wind (mph) 16 NE 18 NE 20 NE 20 ENE 21 ENE 20 ENE 20 ENE 16 ENE
    precip
    9am
    10am
    11am
    12pm
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    Rain
    7%
    6%
    5%
    5%
    8%
    47%
    51%
    47%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    9am
    10am
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    12pm
    1pm
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    UV Index 1 1 2 2 3 3 2 1
    Cloud Cover 95% 95% 95% 95% 96% 99% 99% 98%
    Humidity 77% 67% 60% 56% 52% 50% 49% 50%
    Dew Point 42° 41° 41° 42° 41° 41° 41° 42°
    Temp °F
    9am
    10am
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    12pm
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    65° 60° 55° 50° 45°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 61° 66° N/A 70°
    Low 47° 46° N/A 48°

    Sunrise/Sunset

    • Sunrise: 6:42 AM
    • Sunset: 6:26 PM
    • Duration: 11:44 hr

    Moonrise/Moonset

    • Moonrise: 6:10 AM
    • Moonset: 6:31 PM
    • Duration: 12:21 hr
    Astronomy

    Alton Weather Report

    Persistent rain to raise flood risk in part of northeastern US late this week

    September 29, 2016; 2:55 AM ET

    Rain will spread over much of the northeastern U.S. into the weekend, but persistent downpours will raise the flood risk in part of the mid-Atlantic. More >