Portage Lake Weather Forecast

    • 8
    • 21

    Mostly Cloudy

    • 11
    • 41

    Mostly Cloudy

    • 20
    • 35

    Chance Rain/Snow

    • -11
    • 30

    Mostly Cloudy

    • 6
    • 18

    Mostly Cloudy

Today 15 Dec South Aitkin

Mostly sunny. Not as cool with Highs in the lower 20s. Light and variable Winds.

Tonight 15 Dec South Aitkin

Mostly cloudy. Lows around 8 above. Temperature rising to around 19 after midnight. South Winds around 5 Mph, increasing to 10 to 15 Mph with Gusts up to 25 Mph after midnight.

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Portage Lake Temperature Statistics

December Temperature

Mc Gregor - Isedor Iverson Airport (5.6 miles)

  • Lowest 13 December, 2025

    -14.8 °F

  • Average December

    10 °F

  • Highest 5 December, 2025

    24.8 °F

Climate (2020–Present)

Mc Gregor - Isedor Iverson Airport (5.6 miles)

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  • Average Low 2020–2025

    33.2 °F

  • Average 2020–2025

    43.2 °F

  • Average High 2020–2025

    52.7 °F
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