Grandview Park Weather Forecast

    • 66
    • 80

    Rain Showers Likely

    • 63
    • 80

    Decreasing Clouds

    • 60
    • 77

    Mostly Sunny

    • 64
    • 79

    Mostly Sunny

    • 68
    • 79

    Partly Sunny

    • 69
    • 81

    Slight Chance Thunderstorms

    • 65
    • 81

    Partly Sunny

Today 9 Jul Jefferson

Partly sunny Early, then Showers likely with a chance of Thunderstorms late. Highs Ranging from around 80 along the lake Ontario shore to the mid 80s inland. Southwest Winds 10 to 15 Mph, becoming west 5 to 10 Mph. Chance of rain 70 percent.

Tonight 9 Jul Jefferson

Mostly cloudy. A chance of Showers and Thunderstorms this Evening, then a chance of Showers after midnight. Lows in the mid 60s. Light west Winds. Chance of rain 50 percent.

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  • Temperature Real-Time

Grandview Park Temperature Statistics

July Temperature

Watertown, Watertown International Airport (22.4 miles)

  • Lowest 5 July, 2026

    54.6 °F

  • Average July

    73.9 °F

  • Highest 1 July, 2026

    91.7 °F

Climate (2021–2026)

Watertown, Watertown International Airport (22.4 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57.5 °F
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