Port Vivian Weather Forecast

    • 42
    • 55

    Increasing Clouds

    • 50
    • 65

    Rain Showers Likely

    • 43
    • 63

    Chance Rain Showers

    • 40
    • 59

    Chance Rain Showers

    • 41
    • 58

    Mostly Sunny

    • 48
    • 65

    Partly Sunny

Today 6 Oct Jefferson

Sunny. Highs Ranging from the lower 50s inland to the mid 50s along the lake Ontario shore. Light Winds, becoming west 5 to 10 Mph.

Tonight 6 Oct Jefferson

Mainly clear in the Evening, then becoming mostly cloudy. Lows Ranging from the upper 30s across the tug hill to the mid 40s along the lake Ontario shore. Light Winds, becoming south 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Vivian Temperature Statistics

October Temperature

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

  • Lowest 3 October, 2026

    42.3 °F

  • Average October

    60.4 °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

    47.8 °F

  • Average High 2021–2026

    55.9 °F
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