Alton, Missouri | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Tuesday
    70% Chance of Storms
    77°
    Forecast night icon
    Night
    70% Chance of Storms
    65°
    Tuesday 4/16
    Day
    77°
    70% Chance of Storms
    Forecast day icon
    Night
    65°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Numerous showers and scattered thunderstorms. Highs in the lower 80s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent.
    Night Details
    Mostly cloudy with numerous showers and scattered thunderstorms in the evening then partly cloudy after midnight. Humid with lows in the lower 60s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    84°
    Forecast night icon
    Night
    Mostly Clear
    62°
    Wednesday 4/17
    Day
    84°
    Mostly Sunny
    Forecast day icon
    Night
    62°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny hot. Less humid with highs in the mid 80s. West winds 10 to 15 mph with gusts up to 25 mph.
    Night Details
    Mostly clear with a slight chance of showers and thunderstorms. Lows in the lower 60s. South winds 5 to 10 mph. Chance of rain 20 percent.
  • Forecast day icon
    Thursday
    80% Chance of Storms
    83°
    Forecast night icon
    Night
    70% Chance of Storms
    54°
    Thursday 4/18
    Day
    83°
    80% Chance of Storms
    Forecast day icon
    Night
    54°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A slight chance of showers and thunderstorms in the morning then showers with a chance of thunderstorms in the afternoon. Hot with highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent.
    Night Details
    Showers and thunderstorms likely in the evening. Cooler with lows in the lower 50s. Chance of rain 70 percent.
  • Forecast day icon
    Friday
    Partly Sunny
    68°
    Forecast night icon
    Night
    Mostly Cloudy
    49°
    Friday 4/19
    Day
    68°
    Partly Sunny
    Forecast day icon
    Night
    49°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Not as warm with highs in the upper 60s.
    Night Details
    Mostly cloudy with a 20 percent chance of showers. Lows in the mid 40s. Highs in the mid 60s.
  • Forecast day icon
    Saturday
    Mostly Cloudy
    63°
    Forecast night icon
    Night
    Mostly Cloudy
    45°
    Saturday 4/20
    Day
    63°
    Mostly Cloudy
    Forecast day icon
    Night
    45°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 20 percent chance of showers. Lows in the mid 40s. Highs in the mid 60s.
    Night Details
    Mostly cloudy with a 20 percent chance of showers. Lows in the mid 40s. Highs in the mid 60s.
  • Forecast day icon
    Sunday
    Partly Sunny
    64°
    Forecast night icon
    Night
    Partly Cloudy
    41°
    Sunday 4/21
    Day
    64°
    Partly Sunny
    Forecast day icon
    Night
    41°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the mid 60s.
    Night Details
    Partly cloudy in the evening then clearing. Lows around 40.
  • Forecast day icon
    Monday
    Sunny
    68°
    Forecast night icon
    Night
    Clear
    47°
    Monday 4/22
    Day
    68°
    Sunny
    Forecast day icon
    Night
    47°
    Clear
    Forecast night icon
    Day Details
    Sunny. Highs around 70.
    Night Details
    Clear. Low temperature around 47F. Dew point will be around 39F with an average humidity of 59%. Winds will be 5 mph from the S.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    72°
    Forecast night icon
    Night
    30% Chance of Rain
    54°
    Tuesday 4/23
    Day
    72°
    Mostly Sunny
    Forecast day icon
    Night
    54°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 72F. Dew point will be around 46F with an average humidity of 57%. Winds will be 4 mph from the S.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 54F. Dew point will be around 51F with an average humidity of 69%. Winds will be 3 mph from the S.
  • Forecast day icon
    Wednesday
    30% Chance of Rain
    74°
    Forecast night icon
    Night
    30% Chance of Rain
    58°
    Wednesday 4/24
    Day
    74°
    30% Chance of Rain
    Forecast day icon
    Night
    58°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a 30% chance for rain and thunderstorms. High temperature around 74F. Dew point will be around 52F with an average humidity of 62%. Winds will be 4 mph from the S.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 58F. Dew point will be around 54F with an average humidity of 70%. Winds will be 4 mph from the S.
  • Forecast day icon
    Thursday
    40% Chance of Rain
    75°
    Forecast night icon
    Night
    40% Chance of Rain
    57°
    Thursday 4/25
    Day
    75°
    40% Chance of Rain
    Forecast day icon
    Night
    57°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a 40% chance for rain and thunderstorms. High temperature around 75F. Dew point will be around 56F with an average humidity of 66%. Winds will be 5 mph from the S.
    Night Details
    Partly cloudy with a 40% chance for rain and thunderstorms. Low temperature around 57F. Dew point will be around 54F with an average humidity of 69%. Winds will be 4 mph from the S.