Two Island Lake Weather Forecast

    • 42
    • 58

    Increasing Clouds

    • 47
    • 58

    Chance Rain Showers

    • 47
    • 65

    Partly Sunny

    • 48
    • 62

    Chance Rain Showers

    • 47
    • 65

    Mostly Cloudy

    • 47
    • 64

    Chance Rain Showers

Today 23 Sep Southern Cook/North Shore

Sunny. Highs in the upper 50s. Southeast Winds 5 to 10 Mph.

Tonight 23 Sep Southern Cook/North Shore

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 40s. Southeast Winds around 5 Mph.

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Two Island Lake Temperature Statistics

September Temperature

Grand Marais/Cook County Airport (4.3 miles)

  • Lowest 14 September, 2026

    33.8 °F

  • Average September

    57 °F

  • Highest 1 September, 2026

    77 °F

Climate (2021–2026)

Grand Marais/Cook County Airport (4.3 miles)

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  • Average Low 2021–2026

    28.7 °F

  • Average 2021–2026

    38 °F

  • Average High 2021–2026

    46.5 °F
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