80°F°C
H81° L66°
27°C°F
H27° L19°

Alton

    • Today
    • Heavy Thunderstorms 
    • High81°
    • High27°
    • Low66°
    • Low19°
    • Tomorrow
    • Thunderstorms 
    • High75°
    • High24°
    • Low58°
    • Low14°
    • Sunday
    • Cloudy 
    • High70°
    • High21°
    • Low56°
    • Low13°
    • Monday
    • Mostly Cloudy 
    • High74°
    • High23°
    • Low55°
    • Low13°
    • Tuesday
    • Mostly Sunny 
    • High78°
    • High26°
    • Low59°
    • Low15°

 
  • Tonight: Thunderstorms - some may contain locally heavy rain, especially this evening. A few storms may be severe. Low 66F. Winds SSE at 5 to 10 mph. Chance of rain 100%.
  • Tomorrow: Thunderstorms likely in the morning. Then the chance of scattered thunderstorms in the afternoon. High near 75F. SSW winds shifting to WNW at 10 to 15 mph. Chance of rain 80%.
  • Tomorrow night: Mostly cloudy skies. Low 58F. Winds NNW at 10 to 15 mph.
  • Sunday: Cloudy. High near 70F. Winds N at 5 to 10 mph.
  • Monday: Mostly cloudy. Highs in the low 70s and lows in the mid 50s.
  • Tuesday: Considerable cloudiness. Highs in the mid 70s and lows in the mid 50s.
      • Sunrise
      • 05:50
      •  
      • Sunset
      • 20:19
      •  
      • Feels like
      • 84°F29°C
      •  
      • Humidity
      • 71%
      •  
      • Visibility
      • 1016.09
      • mikm
      • Dew point
      • 70
      •  
      • UV index
      • 2
      •  
      • Wind
      • NE
      • 7 mph11.27 km/h
      • UV description
      • Low
      •  
      • Barometer
      • 29.971,014.9
      • inmb and falling
    PrecipitationTemperature
    Temperature data not available now
    Temperature data not available now
    Precipitation data not available now
    Precipitation data not available now
    45,51,61,70,78,86,91,90,83,73,59,48,
    7,11,16,21,26,30,33,32,28,23,15,9,
    20,24,33,42,51,60,65,63,54,42,33,24,
    -7,-4,1,6,11,16,18,17,12,6,1,-4,
    2.73,3.1,4.2,4.11,4.72,3.41,3.32,3.06,3.57,3.4,5.07,4.16,
    6.93,7.87,10.67,10.44,11.99,8.66,8.43,7.77,9.07,8.64,12.88,10.57,

    Alton Weather forecasts

     | Last updated 16:52 CDT

    The Weather ChannelFeatured forecasts at The Weather Channel®