Ontonagon Weather Forecast

    • 63
    • 81

    Slight Chance Thunderstorms

    • 67
    • 85

    Rain Showers

    • 64
    • 81

    Rain Showers

    • 62
    • 79

    Chance Rain Showers

    • 62
    • 78

    Partly Sunny

    • 65
    • 82

    Partly Sunny

Today 21 Jul Ontonagon

Mostly sunny. Highs in the lower 80s. Southeast Winds 5 to 10 Mph.

Tonight 21 Jul Ontonagon

A slight chance of Showers and Thunderstorms after midnight. Mostly cloudy. Lows 59 to 64. Southeast Winds 5 to 10 Mph, becoming south after midnight. Chance of rain 20 percent.

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  • Temperature Real-Time

Ontonagon Temperature Statistics

July Temperature

Houghton County Memorial Airport (44.1 miles)

  • Lowest 18 July, 2025

    48.9 °F

  • Average July

    66.5 °F

  • Highest 4 July, 2025

    84.7 °F

Climate (2020–Present)

Houghton County Memorial Airport (44.1 miles)

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  • Average Low 2020–2025

    35.8 °F

  • Average 2020–2025

    44 °F

  • Average High 2020–2025

    52 °F
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