Canandaigua Weather Forecast

    • 50
    • 66

    Mostly Sunny

    • 54
    • 66

    Partly Sunny

    • 53
    • 65

    Slight Chance Rain Showers

    • 52
    • 64

    Partly Sunny

    • 51
    • 68

    Partly Sunny

    • 59
    • 74

    Mostly Cloudy

Today 25 Sep Ontario

Sunny. Highs Ranging from the lower 60s on the Hilltops to the mid 60s across the lower Elevations. Light Winds, becoming north 5 to 10 Mph.

Tonight 25 Sep Ontario

Mainly clear. Lows around 50. North Winds 10 Mph or less.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Canandaigua Temperature Statistics

September Temperature

Penn Yan, Penn Yan Airport (20.5 miles)

  • Lowest 19 September, 2026

    43 °F

  • Average September

    65.1 °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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