Big Bay Weather Forecast

    • 46
    • 52

    Rain Showers

    • 40
    • 55

    Mostly Sunny

    • 44
    • 52

    Partly Sunny

    • 48
    • 57

    Partly Sunny

    • 45
    • 61

    Partly Sunny

    • 42
    • 56

    Partly Sunny

Today 3 Oct Southern Cook/North Shore

Showers likely. Near steady temperature in the lower 50s. Southeast Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 3 Oct Southern Cook/North Shore

Mostly cloudy. Showers in the evening. Lows in the lower 40s. South Winds 5 to 10 Mph, becoming northwest 10 to 15 Mph after midnight. Gusts up to 30 Mph. Chance of rain 80 percent.

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Big Bay Temperature Statistics

October Temperature

Grand Marais, The Bay of Grand Marais (20.5 miles)

  • Lowest 1 October, 2026

    48 °F

  • Average October

    56.2 °F

  • Highest 1 October, 2026

    66.9 °F

Climate (2021–2026)

Grand Marais, The Bay of Grand Marais (20.5 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    40.7 °F

  • Average High 2021–2026

    47.8 °F
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