Keweenaw National Historical Park Weather Forecast

    • 43
    • 59

    Increasing Clouds

    • 40
    • 59

    Mostly Cloudy

    • 42
    • 61

    Mostly Sunny

    • 42
    • 63

    Mostly Sunny

    • 46
    • 66

    Partly Sunny

    • 48
    • 67

    Partly Sunny

Today 20 Sep Houghton

Mostly cloudy. Highs around 70.

Tonight 20 Sep Houghton

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 40s. Northeast Winds 5 to 10 Mph, becoming east after midnight.

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Keweenaw National Historical Park Temperature Statistics

September Temperature

Houghton County Memorial Airport (3.7 miles)

  • Lowest 14 September, 2026

    37 °F

  • Average September

    62 °F

  • Highest 1 September, 2026

    82 °F

Climate (2021–2026)

Houghton County Memorial Airport (3.7 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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