Canandaigua Weather Forecast

    • 54
    • 66

    Rain Showers

    • 50
    • 66

    Chance Rain Showers

    • 47
    • 61

    Chance Rain Showers

    • 46
    • 61

    Chance Rain Showers

    • 48
    • 60

    Chance Rain Showers

Today 19 Sep Ontario

Partly to mostly sunny. Highs Ranging from the lower 60s on the Hilltops to the mid 60s across the lower Elevations. Light east Winds.

Tonight 19 Sep Ontario

Mostly cloudy. Showers overnight. Lows in the mid 50s. Light Winds. Chance of rain 80 percent.

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Canandaigua Temperature Statistics

September Temperature

Penn Yan, Penn Yan Airport (20.5 miles)

  • Lowest 15 September, 2026

    48 °F

  • Average September

    67.2 °F

  • Highest 1 September, 2026

    82.9 °F

Climate (2021–2026)

Penn Yan, Penn Yan Airport (20.5 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    59 °F
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