Harriman State Park Weather Forecast

    • 50
    • 77

    Mostly Sunny

    • 49
    • 70

    Mostly Sunny

    • 51
    • 69

    Partly Sunny

    • 59
    • 74

    Partly Sunny

    • 61
    • 80

    Partly Sunny

    • 59
    • 77

    Slight Chance Rain Showers

Today 19 Sep Rockland

Sunny. Highs in the lower 80s. Northwest Winds around 5 Mph.

Tonight 19 Sep Rockland

Clear. Lows in the lower 60s. Northwest Winds around 5 Mph.

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Harriman State Park Temperature Statistics

September Temperature

Newburgh / Stewart (18.6 miles)

  • Lowest 8 September, 2025

    46.4 °F

  • Average September

    66 °F

  • Highest 4 September, 2025

    80.6 °F

Climate (2020–Present)

Newburgh / Stewart (18.6 miles)

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  • Average Low 2020–2025

    43.8 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    61.5 °F
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