Ontonagon Township Park Weather Forecast

    • 45
    • 63

    Becoming Sunny

    • 55
    • 69

    Rain Showers

    • 50
    • 67

    Breezy

    • 52
    • 66

    Mostly Cloudy

    • 53
    • 67

    Slight Chance Rain Showers

    • 54
    • 68

    Chance Rain Showers

Today 13 Sep Ontonagon

Mostly sunny. Highs in the mid 60s. Northwest Winds 5 to 15 Mph with Gusts up to 30 Mph.

Tonight 13 Sep Ontonagon

Clear. Patchy frost after midnight. Lows 32 to 37 inland to around 45 at the shore. Light west Winds, becoming south after midnight.

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Ontonagon Township Park Temperature Statistics

September Temperature

Houghton County Memorial Airport (43.5 miles)

  • Lowest 3 September, 2026

    51.1 °F

  • Average September

    65.4 °F

  • Highest 1 September, 2026

    82 °F

Climate (2021–2026)

Houghton County Memorial Airport (43.5 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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