Port Vivian Weather Forecast

    • 54
    • 73

    Chance Thunderstorms

    • 56
    • 74

    Chance Rain Showers

    • 56
    • 78

    Partly Sunny

    • 57
    • 77

    Partly Sunny

    • 59
    • 79

    Chance Rain Showers

    • 58
    • 77

    Rain Showers Likely

Today 21 Jun Jefferson

Partly sunny. A chance of Showers and Thunderstorms this afternoon. Highs Ranging from the upper 60s on the tug hill to the lower 70s across the lower Elevations. Light Winds, becoming west 5 to 10 Mph. Chance of rain 40 percent.

Tonight 21 Jun Jefferson

Partly to mostly cloudy. Lows Ranging from the lower 50s across the tug hill to the upper 50s along the lake Ontario shore. Light south Winds.

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  • Temperature Forecast NOAA

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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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