Grand Marais Harbor Weather Forecast

    • 36
    • 42

    Mostly Cloudy

    • 37
    • 42

    Slight Chance Rain Showers

    • 39
    • 45

    Partly Sunny

    • 44
    • 53

    Mostly Cloudy

    • 39
    • 55

    Rain Showers Likely

    • 34
    • 49

    Chance Rain Showers

Today 24 Apr Keweenaw

Mostly cloudy. Highs in the mid 40s. Northwest Winds 5 to 10 Mph, becoming northeast in the afternoon.

Tonight 24 Apr Keweenaw

Cloudy with a 50 percent chance of rain. Lows around 34. Northeast Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Marais Harbor Temperature Statistics

April Temperature

Copper Harbor (11.2 miles)

  • Lowest 1 April, 2025

    10.9 °F

  • Average April

    35.8 °F

  • Highest 12 April, 2025

    53.7 °F

Climate (2020–Present)

Copper Harbor (11.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    44.6 °F

  • Average High 2020–2025

    50.7 °F
Get WillyWeather+ to remove ads