Grand Portage, Minnesota | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Clear
    38°
    Thursday 5/9
    Forecast night icon
    38°
    Clear
    Hourly
    Night Details
    Clear. Areas of frost. Lows in the mid 30s. West winds 5 to 10 mph.
  • Forecast day icon
    Friday
    70% Chance of Storms
    51°
    Forecast night icon
    Night
    50% Chance of Storms
    46°
    Friday 5/10
    Day
    51°
    70% Chance of Storms
    Forecast day icon
    Night
    46°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Areas of frost in the morning. Mostly sunny with a chance of rain showers in the morning then mostly cloudy with rain showers likely with a slight chance of thunderstorms in the afternoon. Highs in the mid 50s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.
    Night Details
    Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening then partly cloudy after midnight. Lows in the upper 30s. Northwest winds 10 to 15 mph. Chance of rain 50 percent.
  • Forecast day icon
    Saturday
    Mostly Sunny
    57°
    Forecast night icon
    Night
    50% Chance Rain Showers
    46°
    Saturday 5/11
    Day
    57°
    Mostly Sunny
    Forecast day icon
    Night
    46°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs around 60. Northwest winds around 10 mph becoming southwest in the afternoon.
    Night Details
    Mostly cloudy with a 50 percent chance of showers. Lows in the lower 40s. South winds 5 to 10 mph with gusts up to 20 mph.
  • Forecast day icon
    Sunday
    50% Chance Rain Showers
    67°
    Forecast night icon
    Night
    Mostly Clear
    44°
    Sunday 5/12
    Day
    67°
    50% Chance Rain Showers
    Forecast day icon
    Night
    44°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a 50 percent chance of showers. Highs in the mid 60s.
    Night Details
    Mostly clear. Lows in the upper 30s.
  • Forecast day icon
    Monday
    Mostly Sunny
    51°
    Forecast night icon
    Night
    Mostly Clear
    38°
    Monday 5/13
    Day
    51°
    Mostly Sunny
    Forecast day icon
    Night
    38°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Cooler with highs in the mid 50s.
    Night Details
    Mostly clear. Lows in the mid 30s.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    53°
    Forecast night icon
    Night
    40% Chance Rain Showers
    40°
    Tuesday 5/14
    Day
    53°
    Mostly Sunny
    Forecast day icon
    Night
    40°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 50s.
    Night Details
    Mostly cloudy with a 40 percent chance of showers. Lows in the upper 30s. Highs in the lower 50s.
  • Forecast day icon
    Wednesday
    40% Chance Rain Showers
    59°
    Forecast night icon
    Night
    40% Chance Rain Showers
    46°
    Wednesday 5/15
    Day
    59°
    40% Chance Rain Showers
    Forecast day icon
    Night
    46°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 40 percent chance of showers. Lows in the upper 30s. Highs in the lower 50s.
    Night Details
    Mostly cloudy with a 40 percent chance of showers. Lows in the upper 30s. Highs in the lower 50s.
  • Forecast day icon
    Thursday
    30% Chance Rain Showers
    51°
    Forecast night icon
    Night
    40% Chance of Rain
    48°
    Thursday 5/16
    Day
    51°
    30% Chance Rain Showers
    Forecast day icon
    Night
    48°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny. A slight chance of showers in the morning then a chance of showers in the afternoon. Highs in the mid 50s. Chance of rain 30 percent.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 48F. Dew point will be around 42F with an average humidity of 75%. Winds will be 4 mph from the NE.
  • Forecast day icon
    Friday
    40% Chance of Rain
    55°
    Forecast night icon
    Night
    30% Chance of Rain
    50°
    Friday 5/17
    Day
    55°
    40% Chance of Rain
    Forecast day icon
    Night
    50°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 55F. Dew point will be around 43F with an average humidity of 68%. Winds will be 2 mph from the N.
    Night Details
    Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 50F. Dew point will be around 42F with an average humidity of 68%. Winds will be 4 mph from the N.
  • Forecast day icon
    Saturday
    40% Chance of Rain
    57°
    Forecast night icon
    Night
    30% Chance of Rain
    49°
    Saturday 5/18
    Day
    57°
    40% Chance of Rain
    Forecast day icon
    Night
    49°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 57F. Dew point will be around 43F with an average humidity of 64%. Winds will be 4 mph from the NW.
    Night Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 49F. Dew point will be around 42F with an average humidity of 66%. Winds will be 6 mph from the NW.