Main Lake Weather Forecast

    • 12
    • 18

    Becoming Sunny

    • 28
    • 34

    Partly Sunny

    • 28
    • 41

    Mostly Cloudy

    • 25
    • 50

    Rain

    • 20
    • 31

    Mostly Cloudy

    • 32
    • 43

    Chance Rain

    • 26
    • 40

    Chance Freezing Rain

Today 15 Dec Beaver

Mostly cloudy with a 20 percent chance of snow Showers. Very cold. Near steady temperature around 18. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 15 Dec Beaver

Partly cloudy. Cold with Lows around 12. Southwest Winds around 5 Mph.

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Main Lake Temperature Statistics

December Temperature

Pittsburgh, Pittsburgh International Airport (6.2 miles)

  • Lowest 9 December, 2025

    10 °F

  • Average December

    27.8 °F

  • Highest 10 December, 2025

    42.1 °F

Climate (2020–Present)

Pittsburgh, Pittsburgh International Airport (6.2 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    54 °F

  • Average High 2020–2025

    63.1 °F
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