Porcupine Mountains State Park Weather Forecast

    • 19
    • 31

    Mostly Sunny

    • 26
    • 37

    Snow Likely

    • 30
    • 38

    Rain/Snow

    • 26
    • 38

    Partly Sunny

    • 26
    • 40

    Partly Sunny

    • 25
    • 41

    Partly Sunny

Today 31 Mar Ontonagon

Sunny. Near steady temperature in the lower 30s. Northwest Winds 5 to 10 Mph.

Tonight 31 Mar Ontonagon

Clear. Lows 8 to 13 above inland to around 20 at the shore. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Porcupine Mountains State Park Temperature Statistics

March Temperature

Ironwood, Gogebic-Iron County Airport (26.1 miles)

  • Lowest 2 March, 2025

    -9.9 °F

  • Average March

    30.6 °F

  • Highest 14 March, 2025

    64.9 °F

Climate (2020–Present)

Ironwood, Gogebic-Iron County Airport (26.1 miles)

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  • Average Low 2020–2025

    32.8 °F

  • Average 2020–2025

    42.4 °F

  • Average High 2020–2025

    51.3 °F
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