Tappan Weather Forecast

    • 66
    • 81

    Increasing Clouds

    • 64
    • 80

    Rain Showers

    • 53
    • 75

    Mostly Sunny

    • 58
    • 73

    Partly Sunny

    • 62
    • 79

    Partly Sunny

    • 62
    • 82

    Chance Rain Showers

Today 12 Sep Rockland

Mostly sunny. Highs in the upper 70s. Northeast Winds around 5 Mph, becoming south this afternoon.

Tonight 12 Sep Rockland

Mostly cloudy. Showers with a chance of Thunderstorms after midnight. Lows in the mid 60s. Southeast Winds 5 to 10 Mph. Chance of rain 90 percent.

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Tappan Temperature Statistics

September Temperature

Teterboro, Teterboro Airport (12.4 miles)

  • Lowest 7 September, 2026

    57.9 °F

  • Average September

    73.3 °F

  • Highest 3 September, 2026

    87.1 °F

Climate (2021–2026)

Teterboro, Teterboro Airport (12.4 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    64.8 °F
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