Portage Lake Weather Forecast

    • 61
    • 79

    Chance Thunderstorms

    • 59
    • 83

    Chance Thunderstorms

    • 57
    • 78

    Chance Thunderstorms

    • 53
    • 69

    Chance Thunderstorms

    • 51
    • 66

    Slight Chance Thunderstorms

    • 53
    • 68

    Mostly Cloudy

Today 15 Sep South Aitkin

Sunny with a chance of Showers with a slight chance of Thunderstorms. Near steady temperature in the upper 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

Tonight 15 Sep South Aitkin

Mostly clear. A slight chance of Showers in the evening. Humid with Lows in the lower 60s. South Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portage Lake Temperature Statistics

September Temperature

Mc Gregor - Isedor Iverson Airport (5.6 miles)

  • Lowest 7 September, 2025

    32 °F

  • Average September

    56.7 °F

  • Highest 1 September, 2025

    78.8 °F

Climate (2020–Present)

Mc Gregor - Isedor Iverson Airport (5.6 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    43.1 °F

  • Average High 2020–2025

    52.5 °F
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