Berlin Lake Weather Forecast

    • 45
    • 69

    Decreasing Clouds

    • 47
    • 71

    Mostly Sunny

    • 45
    • 71

    Partly Sunny

    • 35
    • 61

    Mostly Sunny

    • 34
    • 60

    Mostly Sunny

    • 43
    • 63

    Mostly Cloudy

Today 12 Oct Portage

Partly cloudy. Highs in the upper 60s. East Winds 5 to 10 Mph.

Tonight 12 Oct Portage

Mostly clear. Lows in the mid 40s. East Winds 5 to 10 Mph.

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Berlin Lake Temperature Statistics

October Temperature

Portage County Airport (18 miles)

  • Lowest 9 October, 2025

    37.9 °F

  • Average October

    59.3 °F

  • Highest 4 October, 2025

    82.4 °F

Climate (2020–Present)

Portage County Airport (18 miles)

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  • Average Low 2020–2025

    40.8 °F

  • Average 2020–2025

    50.2 °F

  • Average High 2020–2025

    60.1 °F
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