Turtle Lake Weather Forecast

    • 49
    • 61

    Partly Sunny

    • 51
    • 66

    Partly Sunny

    • 49
    • 62

    Mostly Cloudy

    • 48
    • 60

    Partly Sunny

    • 49
    • 61

    Mostly Sunny

    • 51
    • 63

    Partly Sunny

Today 18 Sep Keweenaw

Partly cloudy. Highs in the upper 50s. East Winds 5 to 10 Mph, becoming southeast 10 to 15 Mph in the afternoon.

Tonight 18 Sep Keweenaw

Mostly clear. Lows 46 to 51. Southeast Winds 5 to 15 Mph.

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Turtle Lake Temperature Statistics

September Temperature

Houghton County Memorial Airport (13.7 miles)

  • Lowest 14 September, 2026

    37 °F

  • Average September

    63.3 °F

  • Highest 1 September, 2026

    82 °F

Climate (2021–2026)

Houghton County Memorial Airport (13.7 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    44 °F

  • Average High 2021–2026

    51.9 °F
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