Washington Harbor Weather Forecast

    • 56
    • 78

    Decreasing Clouds

    • 56
    • 76

    Chance Thunderstorms

    • 56
    • 77

    Partly Sunny

    • 53
    • 78

    Slight Chance Rain Showers

    • 53
    • 77

    Chance Rain Showers

    • 54
    • 75

    Slight Chance Thunderstorms

Today 30 Jun Keweenaw

Patchy fog this morning. Mostly cloudy this Morning, then mostly sunny with a chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may be severe. Hot with Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent. Heat index Values up to 100.

Tonight 30 Jun Keweenaw

Mostly clear. Lows 57 to 62 inland to around 67 at the shore. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Washington Harbor Temperature Statistics

June Temperature

Grand Marais, The Bay of Grand Marais (54.1 miles)

  • Lowest 11 June, 2026

    37.9 °F

  • Average June

    49.3 °F

  • Highest 14 June, 2026

    71.1 °F

Climate (2021–2026)

Grand Marais, The Bay of Grand Marais (54.1 miles)

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

  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    40.9 °F

  • Average High 2021–2026

    48.1 °F
Get WillyWeather+ to remove ads