Cossayuna Lake Weather Forecast

    • 67
    • 92

    Mostly Sunny

    • 66
    • 91

    Chance Thunderstorms

    • 59
    • 88

    Slight Chance Thunderstorms

    • 58
    • 84

    Mostly Sunny

    • 64
    • 88

    Mostly Sunny

    • 60
    • 88

    Chance Rain Showers

    • 56
    • 81

    Partly Sunny

Today 12 Aug Southern Washington

Sunny, hot with Highs in the lower 90s. South Winds around 5 Mph.

Tonight 12 Aug Southern Washington

Mostly clear. Lows in the upper 60s. South Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cossayuna Lake Temperature Statistics

August Temperature

Glens Falls, Floyd Bennett Memorial Airport (13 miles)

  • Lowest 3 August, 2025

    46.7 °F

  • Average August

    69.1 °F

  • Highest 10 August, 2025

    91 °F

Climate (2020–Present)

Glens Falls, Floyd Bennett Memorial Airport (13 miles)

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  • Average Low 2020–2025

    37.5 °F

  • Average 2020–2025

    48 °F

  • Average High 2020–2025

    58.1 °F
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