Grindstone Weather Forecast

    • 37
    • 57

    Becoming Sunny

    • 47
    • 61

    Mostly Sunny

    • 49
    • 60

    Chance Rain Showers

    • 43
    • 53

    Rain Showers Likely

    • 37
    • 47

    Slight Chance Rain Showers

    • 37
    • 44

    Chance Rain Showers

Today 26 Apr Jefferson

Sunny. Areas of fog this morning. Highs Ranging from the upper 50s along the lake Ontario shore to the lower 60s inland. Light north Winds.

Tonight 26 Apr Jefferson

Mainly clear. Lows in the upper 30s. Light east Winds.

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  • Temperature Real-Time

Grindstone Temperature Statistics

April Temperature

Watertown, Watertown International Airport (20.5 miles)

  • Lowest 8 April, 2026

    12.7 °F

  • Average April

    47.1 °F

  • Highest 18 April, 2026

    80.7 °F

Climate (2021–Present)

Watertown, Watertown International Airport (20.5 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    57.5 °F
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