Grand Isle, Maine | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Friday
    Partly Sunny
    59°
    Forecast night icon
    Night
    Partly Cloudy
    38°
    Friday 5/10
    Day
    59°
    Partly Sunny
    Forecast day icon
    Night
    38°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny this morning then becoming partly sunny. Patchy fog this morning. Highs in the upper 50s. Northeast winds around 5 mph.
    Night Details
    Partly cloudy in the evening then clearing. Lows in the mid 30s. East winds around 5 mph.
  • Forecast day icon
    Saturday
    Partly Sunny
    59°
    Forecast night icon
    Night
    Partly Cloudy
    37°
    Saturday 5/11
    Day
    59°
    Partly Sunny
    Forecast day icon
    Night
    37°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A slight chance of rain showers in the afternoon. Highs in the mid 50s. East winds around 5 mph. Chance of rain 20 percent.
    Night Details
    Partly cloudy. Lows in the upper 30s. East winds around 5 mph.
  • Forecast day icon
    Sunday
    Partly Sunny
    59°
    Forecast night icon
    Night
    Partly Cloudy
    38°
    Sunday 5/12
    Day
    59°
    Partly Sunny
    Forecast day icon
    Night
    38°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny in the morning then becoming mostly cloudy. A 20 percent chance of showers. Highs in the mid 50s. East winds around 5 mph.
    Night Details
    Partly cloudy. A slight chance of showers in the evening. Lows in the upper 30s. Chance of rain 20 percent.
  • Forecast day icon
    Monday
    30% Chance Rain Showers
    62°
    Forecast night icon
    Night
    50% Chance Rain Showers
    45°
    Monday 5/13
    Day
    62°
    30% Chance Rain Showers
    Forecast day icon
    Night
    45°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the lower 60s. Chance of rain 30 percent.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. A 50 percent chance of showers. Lows in the mid 40s.
  • Forecast day icon
    Tuesday
    70% Chance Rain Showers
    62°
    Forecast night icon
    Night
    60% Chance Rain Showers
    47°
    Tuesday 5/14
    Day
    62°
    70% Chance Rain Showers
    Forecast day icon
    Night
    47°
    60% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Showers likely. Highs in the lower 60s. Chance of rain 70 percent.
    Night Details
    Mostly cloudy with showers likely in the evening then partly cloudy with a chance of showers after midnight. Lows in the lower 40s. Chance of rain 60 percent.
  • Forecast day icon
    Wednesday
    40% Chance Rain Showers
    66°
    Forecast night icon
    Night
    40% Chance Rain Showers
    44°
    Wednesday 5/15
    Day
    66°
    40% Chance Rain Showers
    Forecast day icon
    Night
    44°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a 40 percent chance of showers. Highs in the lower 60s.
    Night Details
    Partly cloudy. A chance of showers in the evening. Lows around 40. Chance of rain 40 percent.
  • Forecast day icon
    Thursday
    Partly Sunny
    61°
    Forecast night icon
    Night
    Mostly Clear
    43°
    Thursday 5/16
    Day
    61°
    Partly Sunny
    Forecast day icon
    Night
    43°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the mid 60s.
    Night Details
    Mostly clear. Low temperature around 43F. Dew point will be around 39F with an average humidity of 74%. Winds will be 6 mph from the NW.
  • Forecast day icon
    Friday
    Partly Cloudy
    65°
    Forecast night icon
    Night
    30% Chance of Rain
    51°
    Friday 5/17
    Day
    65°
    Partly Cloudy
    Forecast day icon
    Night
    51°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 65F. Dew point will be around 48F with an average humidity of 66%. Winds will be 2 mph from the SE.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 51F. Dew point will be around 47F with an average humidity of 77%. Winds will be 5 mph from the SE.
  • Forecast day icon
    Saturday
    40% Chance of Rain
    63°
    Forecast night icon
    Night
    50% Chance of Rain
    53°
    Saturday 5/18
    Day
    63°
    40% Chance of Rain
    Forecast day icon
    Night
    53°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 63F. Dew point will be around 51F with an average humidity of 75%. Winds will be 6 mph from the SE.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 53F. Dew point will be around 50F with an average humidity of 84%. Winds will be 4 mph from the SE.
  • Forecast day icon
    Sunday
    50% Chance of Rain
    66°
    Forecast night icon
    Night
    50% Chance of Rain
    51°
    Sunday 5/19
    Day
    66°
    50% Chance of Rain
    Forecast day icon
    Night
    51°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 66F. Dew point will be around 53F with an average humidity of 74%. Winds will be 4 mph from the SW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 51F. Dew point will be around 48F with an average humidity of 81%. Winds will be 3 mph from the S.