Ontonagon Weather Forecast

    • 56
    • 69

    Partly Sunny

    • 45
    • 71

    Chance Rain Showers

    • 36
    • 52

    Mostly Cloudy

    • 36
    • 46

    Slight Chance Rain Showers

    • 41
    • 47

    Chance Rain Showers

    • 44
    • 56

    Chance Rain Showers

Today 23 Oct Ontonagon

Mostly sunny. Unseasonably warm with Highs in the mid 70s. South Winds 5 to 10 Mph.

Tonight 23 Oct Ontonagon

Partly cloudy in the Evening, then cloudy with a slight chance of Showers after midnight. Lows around 56. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Real-Time

Ontonagon Temperature Statistics

October Temperature

Houghton County Memorial Airport (44.1 miles)

  • Lowest 9 October, 2026

    30.9 °F

  • Average October

    51.2 °F

  • Highest 10 October, 2026

    84.9 °F

Climate (2021–2026)

Houghton County Memorial Airport (44.1 miles)

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  • Average Low 2021–2026

    35.7 °F

  • Average 2021–2026

    43.9 °F

  • Average High 2021–2026

    51.8 °F
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