Gravely Bay Weather Forecast

    • 52
    • 67

    Increasing Clouds

    • 57
    • 63

    Partly Sunny

    • 54
    • 64

    Chance Rain Showers

    • 52
    • 61

    Breezy

    • 53
    • 61

    Partly Sunny

    • 55
    • 63

    Partly Sunny

Today 18 Sep Jefferson

Sunny. Highs in the upper 60s. North Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph.

Tonight 18 Sep Jefferson

Mostly cloudy and cooler with Lows Ranging from around 40 across the tug hill to the mid 40s along the lake Ontario shore. Light northeast Winds.

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Gravely Bay Temperature Statistics

September Temperature

Watertown, Watertown International Airport (16.8 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 (16.8 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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