Denning Weather Forecast

    • 46
    • 73

    Partly Sunny

    • 46
    • 74

    Increasing Clouds

    • 50
    • 68

    Mostly Cloudy

    • 51
    • 75

    Partly Sunny

    • 39
    • 74

    Mostly Sunny

    • 41
    • 66

    Partly Sunny

    • 45
    • 68

    Mostly Cloudy

Today 15 Sep Western Ulster

Mostly sunny. Near steady temperature in the mid 70s. East Winds around 5 Mph.

Tonight 15 Sep Western Ulster

Partly cloudy. Patchy fog after midnight. Lows in the mid 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Denning Temperature Statistics

September Temperature

Monticello, Sullivan County International Airport (23.6 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 (23.6 miles)

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  • Average Low 2020–2025

    37 °F

  • Average 2020–2025

    46.2 °F

  • Average High 2020–2025

    55.6 °F
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