Portage Lake Weather Forecast

    • 46
    • 68

    Increasing Clouds

    • 48
    • 61

    Chance Rain Showers

    • 45
    • 66

    Mostly Cloudy

    • 42
    • 65

    Mostly Cloudy

    • 40
    • 63

    Mostly Cloudy

    • 43
    • 64

    Mostly Cloudy

Today 17 Sep South Aitkin

Areas of dense fog this morning. Partly sunny. Highs in the lower 70s. Light and variable Winds, becoming north around 5 Mph this afternoon.

Tonight 17 Sep South Aitkin

Mostly cloudy. Lows in the upper 40s. Northeast Winds around 5 Mph.

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Portage Lake Temperature Statistics

September Temperature

Mc Gregor - Isedor Iverson Airport (5.6 miles)

  • Lowest 14 September, 2026

    33.8 °F

  • Average September

    63.8 °F

  • Highest 2 September, 2026

    82.4 °F

Climate (2021–2026)

Mc Gregor - Isedor Iverson Airport (5.6 miles)

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  • Average Low 2021–2026

    32.9 °F

  • Average 2021–2026

    42.9 °F

  • Average High 2021–2026

    52.5 °F
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