Alton, Missouri | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    50% Chance of Storms
    63°
    Thursday 5/2
    Forecast night icon
    63°
    50% Chance of Storms
    Hourly
    Night Details
    Mostly cloudy with scattered showers with isolated thunderstorms. Patchy fog. Lows in the lower 60s. Southeast winds around 5 mph becoming northeast. Chance of rain 50 percent.
  • Forecast day icon
    Friday
    40% Chance of Storms
    77°
    Forecast night icon
    Night
    40% Chance of Storms
    63°
    Friday 5/3
    Day
    77°
    40% Chance of Storms
    Forecast day icon
    Night
    63°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Patchy fog in the morning. Isolated showers and thunderstorms in the morning then scattered showers and thunderstorms in the afternoon. Highs in the upper 70s. Northeast winds around 5 mph. Chance of rain 40 percent.
    Night Details
    Mostly cloudy with scattered showers and thunderstorms in the evening then partly cloudy after midnight. Lows around 60. Southeast winds around 5 mph. Chance of rain 40 percent.
  • Forecast day icon
    Saturday
    60% Chance of Storms
    80°
    Forecast night icon
    Night
    Mostly Cloudy
    62°
    Saturday 5/4
    Day
    80°
    60% Chance of Storms
    Forecast day icon
    Night
    62°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A slight chance of showers and thunderstorms in the morning then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Southeast winds around 5 mph becoming southwest in the afternoon. Chance of rain 60 percent.
    Night Details
    Mostly cloudy with a slight chance of showers and thunderstorms. Lows around 60. Southwest winds around 5 mph becoming north after midnight. Chance of rain 20 percent.
  • Forecast day icon
    Sunday
    80% Chance of Storms
    74°
    Forecast night icon
    Night
    50% Chance of Storms
    64°
    Sunday 5/5
    Day
    74°
    80% Chance of Storms
    Forecast day icon
    Night
    64°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of thunderstorms. A chance of showers in the morning then showers in the afternoon. Highs in the mid 70s. Chance of rain 80 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 50 percent.
  • Forecast day icon
    Monday
    60% Chance of Storms
    80°
    Forecast night icon
    Night
    40% Chance of Storms
    68°
    Monday 5/6
    Day
    80°
    60% Chance of Storms
    Forecast day icon
    Night
    68°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of thunderstorms. A chance of showers in the morning then showers likely in the afternoon. Highs in the lower 80s. Chance of rain 60 percent.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 40 percent.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    83°
    Forecast night icon
    Night
    50% Chance of Storms
    64°
    Tuesday 5/7
    Day
    83°
    50% Chance of Storms
    Forecast day icon
    Night
    64°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A slight chance of showers and thunderstorms in the morning then a chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 80s. Chance of rain 50 percent.
    Night Details
    Partly cloudy. A chance of showers and thunderstorms mainly in the evening. Lows in the mid 60s. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    30% Chance of Storms
    84°
    Forecast night icon
    Night
    40% Chance of Storms
    62°
    Wednesday 5/8
    Day
    84°
    30% Chance of Storms
    Forecast day icon
    Night
    62°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 80s. Chance of rain 30 percent.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A chance of thunderstorms. A chance of showers. Lows in the lower 60s. Chance of rain 40 percent.
  • Forecast day icon
    Thursday
    40% Chance of Storms
    82°
    Forecast night icon
    Night
    70% Chance of Rain
    60°
    Thursday 5/9
    Day
    82°
    40% Chance of Storms
    Forecast day icon
    Night
    60°
    70% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.
    Night Details
    Clear with a 70% chance for rain and thunderstorms. Low temperature around 60F. Dew point will be around 60F with an average humidity of 75%. Winds will be 3 mph from the SW.
  • Forecast day icon
    Friday
    30% Chance of Rain
    76°
    Forecast night icon
    Night
    40% Chance of Rain
    54°
    Friday 5/10
    Day
    76°
    30% Chance of Rain
    Forecast day icon
    Night
    54°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 76F. Dew point will be around 56F with an average humidity of 65%. Winds will be 2 mph from the N.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 54F. Dew point will be around 54F with an average humidity of 72%. Winds will be 3 mph from the N.
  • Forecast day icon
    Saturday
    30% Chance of Rain
    71°
    Forecast night icon
    Night
    40% Chance of Rain
    53°
    Saturday 5/11
    Day
    71°
    30% Chance of Rain
    Forecast day icon
    Night
    53°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 71F. Dew point will be around 51F with an average humidity of 65%. Winds will be 2 mph from the N.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 40%. Low temperature around 53F. Dew point will be around 51F with an average humidity of 73%. Winds will be 2 mph from the W.