Porcupine Mountains State Park Weather Forecast

    • 63
    • 76

    Mostly Cloudy

    • 64
    • 80

    Mostly Cloudy

    • 66
    • 82

    Partly Sunny

    • 68
    • 84

    Chance Thunderstorms

    • 70
    • 85

    Chance Thunderstorms

    • 70
    • 88

    Chance Thunderstorms

    • 70
    • 87

    Chance Rain Showers

Today 3 Aug Ontonagon

Mostly sunny. Haze. Light northwest Winds.

Tonight 3 Aug Ontonagon

Partly cloudy this Evening, then becoming mostly cloudy. Haze. Lows in the upper 50s. Light east Winds, becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Porcupine Mountains State Park Temperature Statistics

August Temperature

Ironwood, Gogebic-Iron County Airport (26.1 miles)

  • Lowest 1 August, 2025

    43 °F

  • Average August

    59.8 °F

  • Highest 1 August, 2025

    73.9 °F

Climate (2020–Present)

Ironwood, Gogebic-Iron County Airport (26.1 miles)

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  • Average Low 2020–2025

    32.7 °F

  • Average 2020–2025

    42.4 °F

  • Average High 2020–2025

    51.3 °F
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