Ontonagon Weather Forecast

    • 58
    • 83

    Mostly Sunny

    • 55
    • 70

    Slight Chance Thunderstorms

    • 56
    • 73

    Chance Rain Showers

    • 54
    • 74

    Partly Sunny

    • 59
    • 73

    Partly Sunny

    • 58
    • 75

    Partly Sunny

Today 2 Jul Ontonagon

Sunny. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 2 Jul Ontonagon

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the lower 60s. Light south Winds, becoming southwest after midnight.

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Ontonagon Temperature Statistics

July Temperature

Houghton County Memorial Airport (44.1 miles)

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  • Average July

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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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