Port Vivian Weather Forecast

    • 61
    • 80

    Slight Chance Rain Showers

    • 60
    • 78

    Rain Showers Likely

    • 58
    • 79

    Slight Chance Thunderstorms

    • 58
    • 78

    Partly Sunny

    • 55
    • 76

    Chance Rain Showers

    • 53
    • 73

    Partly Sunny

Today 9 Aug Jefferson

Some patchy fog in the Morning, otherwise sunny. Highs Ranging from the lower 70s on the tug hill to the upper 70s across the lower Elevations. West Winds 5 to 10 Mph, becoming southwest.

Tonight 9 Aug Jefferson

Partly cloudy in the Evening, then becoming mostly cloudy. Lows Ranging from around 60 across the tug hill to the mid 60s along the lake Ontario shore. Southwest Winds 5 to 10 Mph, becoming light.

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Port Vivian Temperature Statistics

August Temperature

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

  • Lowest 5 August, 2026

    60.1 °F

  • Average August

    73.3 °F

  • Highest 5 August, 2026

    86.7 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    56 °F
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