Turtle Lake Weather Forecast

    • 53
    • 61

    Mostly Cloudy

    • 54
    • 61

    Chance Rain Showers

    • 57
    • 67

    Rain Showers Likely

    • 57
    • 70

    Chance Rain Showers

    • 57
    • 70

    Chance Rain Showers

    • 55
    • 67

    Slight Chance Rain Showers

Today 18 Sep Keweenaw

Partly cloudy and cooler. Near steady temperature in the upper 50s. Northeast Winds 10 to 15 Mph, becoming east 5 to 10 Mph this afternoon.

Tonight 18 Sep Keweenaw

Partly cloudy. Lows around 52. East Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Turtle Lake Temperature Statistics

September Temperature

Houghton County Memorial Airport (13.7 miles)

  • Lowest 8 September, 2025

    42.1 °F

  • Average September

    59.2 °F

  • Highest 16 September, 2025

    84 °F

Climate (2020–Present)

Houghton County Memorial Airport (13.7 miles)

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  • Average Low 2020–2025

    35.9 °F

  • Average 2020–2025

    44.1 °F

  • Average High 2020–2025

    52.1 °F
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