Port Vivian Weather Forecast

    • 59
    • 84

    Mostly Sunny

    • 71
    • 86

    Partly Sunny

    • 72
    • 91

    Mostly Sunny

    • 64
    • 86

    Mostly Sunny

    • 60
    • 83

    Partly Sunny

    • 60
    • 79

    Partly Sunny

Today 12 Jul Jefferson

Sunny. Highs Ranging from the upper 70s on the tug hill to the lower 80s across the lower Elevations. Light northwest Winds.

Tonight 12 Jul Jefferson

Mainly clear in the Evening, then becoming partly cloudy. Lows Ranging from the upper 50s across the tug hill to the lower 60s along the lake Ontario shore. Light south Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Vivian Temperature Statistics

July Temperature

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

  • Lowest 5 July, 2026

    61.3 °F

  • Average July

    75.4 °F

  • Highest 1 July, 2026

    90 °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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