Canandaigua Weather Forecast

    • 45
    • 65

    Mostly Cloudy

    • 45
    • 66

    Mostly Cloudy

    • 45
    • 66

    Mostly Cloudy

    • 48
    • 65

    Mostly Cloudy

    • 47
    • 65

    Mostly Cloudy

Today 22 Sep Ontario

Partly sunny. Highs Ranging from the upper 50s on the Hilltops to the mid 60s across the lower Elevations. Light Winds, becoming northeast 5 to 10 Mph.

Tonight 22 Sep Ontario

Partly to mostly cloudy. Lows in the mid 40s. Northeast Winds 10 Mph or less.

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Canandaigua Temperature Statistics

September Temperature

Penn Yan, Penn Yan Airport (20.5 miles)

  • Lowest 19 September, 2026

    43 °F

  • Average September

    66.5 °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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