Cape Vincent Weather Forecast

    • 50
    • 64

    Chance Rain Showers

    • 48
    • 59

    Rain Showers Likely

    • 46
    • 60

    Mostly Cloudy

    • 47
    • 61

    Partly Sunny

    • 49
    • 63

    Chance Rain Showers

    • 51
    • 62

    Slight Chance Rain Showers

Today 19 Sep Jefferson

Some patchy fog Early, otherwise mostly sunny. Highs in the mid 60s. Light northeast Winds.

Tonight 19 Sep Jefferson

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers overnight. Lows in the mid 40s. Light southeast Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cape Vincent Temperature Statistics

September Temperature

Watertown, Watertown International Airport (18 miles)

  • Lowest 12 September, 2026

    42.7 °F

  • Average September

    64.8 °F

  • Highest 2 September, 2026

    83.6 °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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