Cape Vincent Weather Forecast

    • 55
    • 70

    Mostly Sunny

    • 66
    • 74

    Increasing Clouds

    • 63
    • 75

    Chance Rain Showers

    • 63
    • 76

    Chance Rain Showers

    • 66
    • 76

    Rain Showers Likely

    • 64
    • 76

    Chance Rain Showers

    • 62
    • 75

    Chance Rain Showers

Today 28 Aug Jefferson

Partly to mostly sunny. Highs around 70. Northwest Winds 5 to 10 Mph.

Tonight 28 Aug Jefferson

Mainly clear with some patchy fog developing from late evening on. Lows Ranging from the upper 40s across the tug hill to the lower 50s along the lake Ontario shore. Light Winds.

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  • Temperature Real-Time

Cape Vincent Temperature Statistics

August Temperature

Watertown, Watertown International Airport (18 miles)

  • Lowest 16 August, 2026

    47.6 °F

  • Average August

    68.5 °F

  • Highest 5 August, 2026

    87.7 °F

Climate (2021–2026)

Watertown, Watertown International Airport (18 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57.6 °F
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