Glen Spey Weather Forecast

    • 53
    • 79

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 52
    • 78

    Partly Sunny

    • 54
    • 74

    Mostly Cloudy

    • 55
    • 77

    Partly Sunny

    • 53
    • 81

    Partly Sunny

Today 14 Sep Sullivan

Mostly sunny. Highs around 80. Northwest Winds around 5 Mph.

Tonight 14 Sep Sullivan

Partly cloudy. Patchy fog. Lows in the lower 50s. North Winds around 5 Mph.

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Glen Spey Temperature Statistics

September Temperature

Monticello, Sullivan County International Airport (14.9 miles)

  • Lowest 2 September, 2025

    48.2 °F

  • Average September

    48.2 °F

  • Highest 2 September, 2025

    48.2 °F

Climate (2020–Present)

Monticello, Sullivan County International Airport (14.9 miles)

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  • Average Low 2020–2025

    37 °F

  • Average 2020–2025

    46.3 °F

  • Average High 2020–2025

    55.7 °F
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