Port Vivian Weather Forecast

    • 37
    • 60

    Chance Rain Showers

    • 49
    • 62

    Partly Sunny

    • 51
    • 65

    Rain Showers Likely

    • 51
    • 65

    Rain Showers Likely

    • 43
    • 61

    Rain Showers Likely

    • 40
    • 57

    Partly Sunny

Today 9 Oct Jefferson

Partly sunny with a chance of Showers Early, then partly sunny late this morning. Partly sunny with a chance of Showers this afternoon. Breezy with Highs Ranging from the mid 50s on the tug hill to the upper 50s across the lower Elevations. West Winds 5 to 10 Mph, increasing to 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 40 percent.

Tonight 9 Oct Jefferson

Partly cloudy with patchy frost developing overnight. Chilly with Lows Ranging from the mid 30s across the tug hill to the lower 40s along the lake Ontario shore. West Winds 5 to 10 Mph, becoming light.

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Port Vivian Temperature Statistics

October Temperature

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

  • Lowest 6 October, 2026

    33.6 °F

  • Average October

    55.4 °F

  • Highest 1 October, 2026

    70.9 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    55.9 °F
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