Alton, Illinois | Local and National Hourly Weather Forecasts | WeatherBug
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  • Saturday
    Forecast hour icon
    2am
    Clear
    47°
    Precip 0%
    2am Sat
    47°
    Feels like 44°
    Current forecast icon
    Clear
    • Humidity
      67%
    • Wind
      NW 7
    • Dew Point
      37°
  • Forecast hour icon
    3am
    Clear
    46°
    Precip 0%
    3am Sat
    46°
    Feels like 41°
    Current forecast icon
    Clear
    • Humidity
      66%
    • Wind
      NNW 9
    • Dew Point
      35°
  • Forecast hour icon
    4am
    Clear
    45°
    Precip 0%
    4am Sat
    45°
    Feels like 40°
    Current forecast icon
    Clear
    • Humidity
      68%
    • Wind
      N 10
    • Dew Point
      35°
  • Forecast hour icon
    5am
    Clear
    44°
    Precip 0%
    5am Sat
    44°
    Feels like 38°
    Current forecast icon
    Clear
    • Humidity
      71%
    • Wind
      N 9
    • Dew Point
      35°
  • Forecast hour icon
    6am
    Clear
    43°
    Precip 0%
    6am Sat
    43°
    Feels like 38°
    Current forecast icon
    Clear
    • Humidity
      71%
    • Wind
      NNW 8
    • Dew Point
      34°
  • 6:16a
    Forecast hour icon
    7am
    Mostly Sunny
    44°
    Precip 0%
    7am Sat
    44°
    Feels like 40°
    Current forecast icon
    Mostly Sunny
    • Humidity
      66%
    • Wind
      NNW 7
    • Dew Point
      33°
  • Forecast hour icon
    8am
    Sunny
    46°
    Precip 0%
    8am Sat
    46°
    Feels like 41°
    Current forecast icon
    Sunny
    • Humidity
      60%
    • Wind
      NW 9
    • Dew Point
      33°
  • Forecast hour icon
    9am
    Mostly Sunny
    48°
    Precip 0%
    9am Sat
    48°
    Feels like 43°
    Current forecast icon
    Mostly Sunny
    • Humidity
      49%
    • Wind
      NW 11
    • Dew Point
      30°
  • Forecast hour icon
    10am
    Mostly Sunny
    50°
    Precip 0%
    10am Sat
    50°
    Feels like 50°
    Current forecast icon
    Mostly Sunny
    • Humidity
      45%
    • Wind
      NW 12
    • Dew Point
      29°
  • Forecast hour icon
    11am
    Sunny
    52°
    Precip 0%
    11am Sat
    52°
    Feels like 52°
    Current forecast icon
    Sunny
    • Humidity
      42%
    • Wind
      NW 13
    • Dew Point
      30°
  • Forecast hour icon
    12pm
    Mostly Sunny
    54°
    Precip 0%
    12pm Sat
    54°
    Feels like 54°
    Current forecast icon
    Mostly Sunny
    • Humidity
      40%
    • Wind
      NW 13
    • Dew Point
      31°
  • Forecast hour icon
    1pm
    Mostly Sunny
    56°
    Precip 0%
    1pm Sat
    56°
    Feels like 56°
    Current forecast icon
    Mostly Sunny
    • Humidity
      38%
    • Wind
      NW 13
    • Dew Point
      31°