Port Vivian Weather Forecast

    • 57
    • 81

    Smoke

    • 61
    • 78

    Partly Sunny

    • 59
    • 80

    Rain Showers

    • 58
    • 78

    Mostly Sunny

    • 63
    • 79

    Mostly Cloudy

    • 60
    • 80

    Rain Showers Likely

Today 16 Jul Jefferson

Partly sunny. Smoke. A chance of Showers late. Highs Ranging from the mid 70s on the tug hill to around 80 across the lower Elevations. Light Winds, becoming west 10 to 15 Mph. Chance of rain 40 percent.

Tonight 16 Jul Jefferson

Becoming mainly clear. Smoke in the evening. Lows Ranging from the mid 50s across the tug hill to the lower 60s along the lake Ontario shore. Northwest Winds 5 to 10 Mph, becoming light.

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  • Temperature Forecast NOAA

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Port Vivian Temperature Statistics

July Temperature

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

  • Lowest 12 July, 2026

    59 °F

  • Average July

    74.9 °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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