Grindstone Weather Forecast

    • 37
    • 52

    Partly Sunny

    • 41
    • 54

    Mostly Sunny

    • 50
    • 56

    Partly Sunny

    • 40
    • 57

    Partly Sunny

    • 36
    • 46

    Partly Sunny

    • 43
    • 51

    Mostly Cloudy

Today 23 Oct Jefferson

Sunny. Patchy fog this morning. Highs in the lower 50s. Light northeast Winds.

Tonight 23 Oct Jefferson

Mostly cloudy in the Evening, then becoming partly cloudy with some patchy fog developing. Lows Ranging from the lower 30s across the tug hill to the mid 30s along the lake Ontario shore. Light Winds.

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Grindstone Temperature Statistics

October Temperature

Watertown, Watertown International Airport (20.5 miles)

  • Lowest 21 October, 2026

    26.1 °F

  • Average October

    51.9 °F

  • Highest 1 October, 2026

    71.7 °F

Climate (2021–2026)

Watertown, Watertown International Airport (20.5 miles)

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  • Average Low 2021–2026

    38.1 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    57.5 °F
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