Porcupine Mountains Weather Forecast

    • 54
    • 68

    Partly Sunny

    • 57
    • 72

    Rain Showers Likely

    • 53
    • 70

    Chance Rain Showers

    • 43
    • 63

    Partly Sunny

    • 39
    • 61

    Mostly Sunny

    • 43
    • 64

    Mostly Cloudy

Today 28 Sep Ontonagon

Patchy fog in the morning. Mostly sunny. Highs in the mid 70s. Light southeast Winds, becoming northeast in the afternoon.

Tonight 28 Sep Ontonagon

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 53. Light southeast Winds, becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Porcupine Mountains Temperature Statistics

September Temperature

Ironwood, Gogebic-Iron County Airport (42.3 miles)

  • Lowest 22 September, 2026

    28 °F

  • Average September

    60 °F

  • Highest 1 September, 2026

    86 °F

Climate (2021–2026)

Ironwood, Gogebic-Iron County Airport (42.3 miles)

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  • Average Low 2021–2026

    32.8 °F

  • Average 2021–2026

    42.7 °F

  • Average High 2021–2026

    51.4 °F
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