Port Vivian Weather Forecast

    • 65
    • 86

    Patchy Smoke

    • 58
    • 83

    Partly Sunny

    • 60
    • 80

    Partly Sunny

    • 59
    • 79

    Rain Showers Likely

    • 60
    • 81

    Partly Sunny

    • 64
    • 82

    Chance Rain Showers

Today 15 Jul Jefferson

Partly to mostly sunny. Smoke. Highs Ranging from the mid 70s on the tug hill to the lower 80s across the lower Elevations. Northwest Winds 10 to 15 Mph.

Tonight 15 Jul Jefferson

Partly cloudy. Smoke. Lows Ranging from the lower 60s across the tug hill to the upper 60s along the lake Ontario shore. Northwest Winds 10 to 15 Mph, becoming light.

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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 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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