Port Vivian Weather Forecast

    • 63
    • 83

    Increasing Clouds

    • 63
    • 82

    Slight Chance Rain Showers

    • 63
    • 81

    Rain Showers Likely

    • 61
    • 79

    Rain Showers

    • 59
    • 76

    Chance Thunderstorms

    • 61
    • 80

    Mostly Sunny

Today 25 Jul Jefferson

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

Tonight 25 Jul Jefferson

Partly to mostly cloudy. Lows Ranging from the lower 60s across the tug hill to the mid 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 17 July, 2026

    50.9 °F

  • Average July

    72.6 °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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