Port Vivian Weather Forecast

    • 55
    • 73

    Chance Thunderstorms

    • 55
    • 74

    Chance Rain Showers

    • 56
    • 79

    Partly Sunny

    • 57
    • 77

    Mostly Cloudy

    • 61
    • 78

    Chance Rain Showers

    • 57
    • 76

    Chance Rain Showers

    • 57
    • 76

    Chance Rain Showers

Today 21 Jun Jefferson

Partly sunny with a 50 percent chance of Showers and Thunderstorms. Highs Ranging from the upper 60s on the tug hill to the lower 70s across the lower Elevations. Southwest Winds 10 to 15 Mph.

Tonight 21 Jun Jefferson

Partly cloudy Early, then becoming mostly cloudy. Lows Ranging from the mid 50s across the tug hill to the upper 50s along the lake Ontario shore. Southwest Winds 10 Mph or less.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Vivian Temperature Statistics

June Temperature

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

  • Lowest 1 June, 2026

    41.5 °F

  • Average June

    67.1 °F

  • Highest 11 June, 2026

    85.1 °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

    47.7 °F

  • Average High 2021–2026

    55.9 °F
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