Port Vivian Weather Forecast

    • 27
    • 46

    Rain Showers Likely

    • 22
    • 39

    Partly Sunny

    • 29
    • 40

    Mostly Cloudy

    • 31
    • 44

    Chance Rain Showers

    • 39
    • 47

    Chance Rain Showers

    • 33
    • 51

    Chance Rain Showers

Today 21 Nov Jefferson

Cloudy. Showers likely late this Morning, then a chance of Showers early this afternoon. Breezy with Highs Ranging from the lower 40s inland to the upper 40s along the lake Ontario shore. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph late this Morning, becoming west. Chance of rain 60 percent.

Tonight 21 Nov Jefferson

Mostly cloudy. Lows in the upper 20s. Light west Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Vivian Temperature Statistics

November Temperature

Fort Drum / Wheeler-Sack U. S. Army Airfield (21.1 miles)

  • Lowest 19 November, 2025

    21.9 °F

  • Average November

    36 °F

  • Highest 3 November, 2025

    54.9 °F

Climate (2020–Present)

Fort Drum / Wheeler-Sack U. S. Army Airfield (21.1 miles)

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  • Average Low 2020–2025

    39.7 °F

  • Average 2020–2025

    48.1 °F

  • Average High 2020–2025

    56.2 °F
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