Gravely Bay Weather Forecast

    • 52
    • 66

    Sunny

    • 56
    • 68

    Mostly Sunny

    • 58
    • 67

    Breezy

    • 56
    • 65

    Chance Rain Showers

    • 56
    • 64

    Partly Sunny

    • 59
    • 65

    Partly Sunny

    • 64
    • 69

    Chance Rain Showers

Today 24 Sep Jefferson

Partly sunny with a 40 percent chance of Showers. Highs in the lower 70s.

Tonight 24 Sep Jefferson

Clear with some patchy fog developing after midnight. Lows Ranging from around 40 across the tug hill to the mid 40s along the lake Ontario shore. Northeast Winds around 10 Mph, becoming light.

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Gravely Bay Temperature Statistics

September Temperature

Watertown, Watertown International Airport (16.8 miles)

  • Lowest 19 September, 2026

    38.6 °F

  • Average September

    62 °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

    57.5 °F
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