Ontonagon Weather Forecast

    • 57
    • 75

    Decreasing Clouds

    • 60
    • 77

    Partly Sunny

    • 61
    • 78

    Chance Rain Showers

    • 59
    • 73

    Partly Sunny

    • 63
    • 75

    Partly Sunny

    • 60
    • 74

    Chance Rain Showers

    • 57
    • 71

    Slight Chance Rain Showers

Today 13 Aug Ontonagon

Mostly sunny. North Winds 5 to 10 Mph.

Tonight 13 Aug Ontonagon

Mostly clear. Lows in the mid 50s. Light east Winds, becoming southeast after midnight.

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Ontonagon Temperature Statistics

August Temperature

Houghton County Memorial Airport (44.1 miles)

  • Lowest 5 August, 2026

    53.1 °F

  • Average August

    67.1 °F

  • Highest 6 August, 2026

    82 °F

Climate (2021–2026)

Houghton County Memorial Airport (44.1 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    44 °F

  • Average High 2021–2026

    52 °F
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