Main Lake Weather Forecast

    • 62
    • 82

    Decreasing Clouds

    • 67
    • 87

    Partly Sunny

    • 66
    • 84

    Chance Thunderstorms

    • 62
    • 83

    Slight Chance Thunderstorms

    • 65
    • 86

    Mostly Sunny

    • 64
    • 86

    Slight Chance Thunderstorms

Today 18 Aug Beaver

Mostly sunny. Highs in the lower 80s. Northeast Winds around 5 Mph.

Tonight 18 Aug Beaver

Mainly clear. Lows in the lower 60s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Main Lake Temperature Statistics

August Temperature

Pittsburgh, Pittsburgh International Airport (6.2 miles)

  • Lowest 3 August, 2025

    53.7 °F

  • Average August

    74.8 °F

  • Highest 12 August, 2025

    93.7 °F

Climate (2020–Present)

Pittsburgh, Pittsburgh International Airport (6.2 miles)

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  • Average Low 2020–2025

    45.1 °F

  • Average 2020–2025

    54 °F

  • Average High 2020–2025

    63.1 °F
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