Port Vivian Weather Forecast

    • 45
    • 62

    Decreasing Clouds

    • 38
    • 72

    Rain Showers

    • 27
    • 44

    Chance Rain Showers

    • 27
    • 40

    Partly Sunny

    • 38
    • 49

    Chance Rain Showers

    • 34
    • 53

    Partly Sunny

Today 17 Apr Jefferson

Mostly cloudy this Morning, then clearing. Patchy fog this morning. Highs Ranging from the upper 50s along the lake Ontario shore to the lower 60s inland. Light north Winds.

Tonight 17 Apr Jefferson

Mainly clear in the Evening, then becoming partly cloudy. Lows Ranging from the lower 40s along the lake Ontario shore to the upper 40s across the tug hill. Light Winds, becoming south 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Vivian Temperature Statistics

April Temperature

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

  • Lowest 8 April, 2026

    17.2 °F

  • Average April

    42.8 °F

  • Highest 3 April, 2026

    73.4 °F

Climate (2021–Present)

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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