Grand Marais Weather Forecast

    • 59
    • 67

    Areas Smoke

    • 62
    • 66

    Rain Showers Likely

    • 64
    • 70

    Chance Thunderstorms

    • 64
    • 73

    Chance Thunderstorms

    • 62
    • 72

    Chance Thunderstorms

    • 62
    • 71

    Slight Chance Thunderstorms

Today 5 Aug Southern Cook/North Shore

Mostly sunny. Areas of smoke in the afternoon. Highs in the mid 70s. East Winds 5 to 10 Mph.

Tonight 5 Aug Southern Cook/North Shore

Mostly cloudy. Near steady temperature in the upper 50s. Northeast Winds around 5 Mph.

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Grand Marais Temperature Statistics

August Temperature

Grand Marais, The Bay of Grand Marais (0 miles)

  • Lowest 2 August, 2025

    52 °F

  • Average August

    63.1 °F

  • Highest 2 August, 2025

    71.1 °F

Climate (2020–Present)

Grand Marais, The Bay of Grand Marais (0 miles)

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  • Average Low 2020–2025

    33.8 °F

  • Average 2020–2025

    41.2 °F

  • Average High 2020–2025

    48.3 °F
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