Ontonagon Weather Forecast

    • 48
    • 68

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

    • 50
    • 79

    Mostly Sunny

    • 50
    • 75

    Mostly Sunny

    • 49
    • 70

    Mostly Sunny

    • 52
    • 73

    Mostly Sunny

Today 28 May Ontonagon

Sunny. Highs in the upper 70s. Light southeast Winds, becoming northeast in the afternoon.

Tonight 28 May Ontonagon

Clear. Lows around 50. Light south Winds, becoming southwest after midnight.

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Ontonagon Temperature Statistics

May Temperature

Houghton County Memorial Airport (44.1 miles)

  • Lowest 8 May, 2026

    28 °F

  • Average May

    47.8 °F

  • Highest 15 May, 2026

    82.9 °F

Climate (2021–Present)

Houghton County Memorial Airport (44.1 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    44.1 °F

  • Average High 2021–2026

    52.1 °F
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