Slide Mountain Weather Forecast

    • 45
    • 69

    Increasing Clouds

    • 42
    • 64

    Mostly Sunny

    • 53
    • 66

    Rain Showers Likely

    • 49
    • 68

    Mostly Cloudy

    • 49
    • 65

    Partly Sunny

    • 56
    • 69

    Partly Sunny

Today 10 Sep Western Ulster

Mostly sunny. Near steady temperature in the mid 70s. West Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 10 Sep Western Ulster

Partly cloudy in the Evening, then becoming mostly cloudy. Cooler with Lows in the lower 50s. Northwest Winds around 5 Mph. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Slide Mountain Temperature Statistics

September Temperature

Monticello, Sullivan County International Airport (29.2 miles)

  • Lowest 7 September, 2026

    48 °F

  • Average September

    65.7 °F

  • Highest 3 September, 2026

    81 °F

Climate (2021–2026)

Monticello, Sullivan County International Airport (29.2 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    45.8 °F

  • Average High 2021–2026

    55.1 °F
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