Grand Isle, Maine | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    40°
    Friday 5/3
    Forecast night icon
    40°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy. Lows in the upper 30s. East winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    Mostly Cloudy
    59°
    Forecast night icon
    Night
    Mostly Cloudy
    42°
    Saturday 5/4
    Day
    59°
    Mostly Cloudy
    Forecast day icon
    Night
    42°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Highs around 60. East winds 5 to 10 mph.
    Night Details
    Mostly cloudy. Lows in the lower 40s. Southeast winds around 5 mph.
  • Forecast day icon
    Sunday
    Mostly Cloudy
    62°
    Forecast night icon
    Night
    70% Chance Rain Showers
    45°
    Sunday 5/5
    Day
    62°
    Mostly Cloudy
    Forecast day icon
    Night
    45°
    70% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A slight chance of showers in the afternoon. Highs in the lower 60s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
    Night Details
    Showers likely. Lows in the mid 40s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.
  • Forecast day icon
    Monday
    50% Chance of Storms
    66°
    Forecast night icon
    Night
    Mostly Clear
    43°
    Monday 5/6
    Day
    66°
    50% Chance of Storms
    Forecast day icon
    Night
    43°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers in the morning then partly sunny with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 50 percent.
    Night Details
    Mostly clear. Lows around 40.
  • Forecast day icon
    Tuesday
    Partly Sunny
    56°
    Forecast night icon
    Night
    Mostly Clear
    36°
    Tuesday 5/7
    Day
    56°
    Partly Sunny
    Forecast day icon
    Night
    36°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny in the morning then becoming partly sunny. Highs in the upper 50s.
    Night Details
    Mostly clear. Cold with lows in the mid 30s.
  • Forecast day icon
    Wednesday
    Partly Sunny
    58°
    Forecast night icon
    Night
    30% Chance Rain Showers
    38°
    Wednesday 5/8
    Day
    58°
    Partly Sunny
    Forecast day icon
    Night
    38°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny in the morning then becoming mostly cloudy. Highs in the upper 50s.
    Night Details
    Mostly cloudy with a 30 percent chance of showers. Lows in the upper 30s.
  • Forecast day icon
    Thursday
    30% Chance Rain Showers
    62°
    Forecast night icon
    Night
    30% Chance Rain Showers
    43°
    Thursday 5/9
    Day
    62°
    30% Chance Rain Showers
    Forecast day icon
    Night
    43°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny in the morning then becoming mostly cloudy. A 30 percent chance of showers. Highs in the upper 50s.
    Night Details
    Mostly cloudy with a 30 percent chance of showers. Lows in the upper 30s.
  • Forecast day icon
    Friday
    30% Chance Rain Showers
    59°
    Forecast night icon
    Night
    50% Chance of Rain
    44°
    Friday 5/10
    Day
    59°
    30% Chance Rain Showers
    Forecast day icon
    Night
    44°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 30 percent chance of showers. Highs in the upper 50s.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 44F. Dew point will be around 42F with an average humidity of 77%. Winds will be 3 mph from the SE.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    58°
    Forecast night icon
    Night
    60% Chance of Rain
    45°
    Saturday 5/11
    Day
    58°
    50% Chance of Rain
    Forecast day icon
    Night
    45°
    60% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 58F. Dew point will be around 45F with an average humidity of 73%. Winds will be 3 mph from the E.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 60%. Low temperature around 45F. Dew point will be around 42F with an average humidity of 79%. Winds will be 3 mph from the E.
  • Forecast day icon
    Sunday
    70% Chance of Rain
    57°
    Forecast night icon
    Night
    40% Chance of Rain
    46°
    Sunday 5/12
    Day
    57°
    70% Chance of Rain
    Forecast day icon
    Night
    46°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with probable rain. Chance of precipitation 65%. High temperature around 57F. Dew point will be around 45F with an average humidity of 76%. Winds will be 1 mph from the E.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 46F. Dew point will be around 42F with an average humidity of 79%. Winds will be 1 mph from the E.