Alton, Missouri | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Sunday
    Rain
    71°
    Forecast night icon
    Night
    Thunderstorms
    63°
    Sunday 5/5
    Day
    71°
    Rain
    Forecast day icon
    Night
    63°
    Thunderstorms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 100% chance for rain and thunderstorms. High temperature around 71F. Dew point will be around 61F with an average humidity of 87%. Winds will be 6 mph from the E.
    Night Details
    A chance of thunderstorms. Showers mainly this evening. Patchy fog after midnight. Lows in the lower 60s. East winds 5 to 10 mph. Chance of rain 90 percent.
  • Forecast day icon
    Monday
    Partly Sunny
    80°
    Forecast night icon
    Night
    70% Chance of Storms
    67°
    Monday 5/6
    Day
    80°
    Partly Sunny
    Forecast day icon
    Night
    67°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Patchy fog in the morning. Mostly cloudy with a slight chance of showers and thunderstorms in the morning then partly sunny in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent.
    Night Details
    Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening then showers likely after midnight. Humid with lows in the mid 60s. South winds 10 to 15 mph. Chance of rain 70 percent.
  • Forecast day icon
    Tuesday
    40% Chance of Storms
    83°
    Forecast night icon
    Night
    40% Chance of Storms
    62°
    Tuesday 5/7
    Day
    83°
    40% Chance of Storms
    Forecast day icon
    Night
    62°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny in the morning then clearing. A chance of showers and thunderstorms. Hot with highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
    Night Details
    Mostly clear. A chance of showers and thunderstorms mainly in the evening. Lows in the lower 60s. Southwest winds 5 to 10 mph becoming south after midnight. Chance of rain 40 percent.
  • Forecast day icon
    Wednesday
    80% Chance of Storms
    79°
    Forecast night icon
    Night
    60% Chance of Storms
    60°
    Wednesday 5/8
    Day
    79°
    80% Chance of Storms
    Forecast day icon
    Night
    60°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A chance of showers and thunderstorms in the morning then showers with thunderstorms likely in the afternoon. Hot with highs in the mid 80s. Chance of rain 80 percent.
    Night Details
    Showers and thunderstorms likely in the evening then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 50s. Chance of rain 60 percent.
  • Forecast day icon
    Thursday
    Mostly Sunny
    78°
    Forecast night icon
    Night
    Mostly Clear
    54°
    Thursday 5/9
    Day
    78°
    Mostly Sunny
    Forecast day icon
    Night
    54°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs around 80. Lows in the lower 50s.
    Night Details
    Mostly clear. Highs around 80. Lows in the lower 50s.
  • Forecast day icon
    Friday
    Mostly Sunny
    69°
    Forecast night icon
    Night
    Mostly Clear
    48°
    Friday 5/10
    Day
    69°
    Mostly Sunny
    Forecast day icon
    Night
    48°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs in the mid 70s. Lows in the upper 40s.
    Night Details
    Mostly clear. Highs in the mid 70s. Lows in the upper 40s.
  • Forecast day icon
    Saturday
    Mostly Sunny
    69°
    Forecast night icon
    Night
    Mostly Clear
    47°
    Saturday 5/11
    Day
    69°
    Mostly Sunny
    Forecast day icon
    Night
    47°
    Mostly Clear
    Forecast night icon
    Day Details
    Mostly clear. Highs in the mid 70s. Lows in the upper 40s.
    Night Details
    Mostly clear. Highs in the mid 70s. Lows in the upper 40s.
  • Forecast day icon
    Sunday
    Mostly Sunny
    71°
    Forecast night icon
    Night
    Clear
    51°
    Sunday 5/12
    Day
    71°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Clear
    Forecast night icon
    Day Details
    Mostly clear. Highs in the mid 70s. Lows in the upper 40s.
    Night Details
    Clear. Low temperature around 51F. Dew point will be around 48F with an average humidity of 70%. Winds will be 3 mph from the NW.
  • Forecast day icon
    Monday
    Sunny
    71°
    Forecast night icon
    Night
    Clear
    54°
    Monday 5/13
    Day
    71°
    Sunny
    Forecast day icon
    Night
    54°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 71F. Dew point will be around 49F with an average humidity of 62%. Winds will be 2 mph from the SW.
    Night Details
    Clear. Low temperature around 54F. Dew point will be around 51F with an average humidity of 71%. Winds will be 1 mph from the SW.
  • Forecast day icon
    Tuesday
    30% Chance of Rain
    72°
    Forecast night icon
    Night
    Mostly Clear
    57°
    Tuesday 5/14
    Day
    72°
    30% Chance of Rain
    Forecast day icon
    Night
    57°
    Mostly Clear
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 72F. Dew point will be around 52F with an average humidity of 64%. Winds will be 4 mph from the S.
    Night Details
    Mostly clear. Low temperature around 57F. Dew point will be around 54F with an average humidity of 73%. Winds will be 4 mph from the S.