Canandaigua Lake Weather Forecast

    • 41
    • 58

    Decreasing Clouds

    • 48
    • 68

    Rain Showers Likely

    • 47
    • 58

    Rain Showers

    • 55
    • 72

    Chance Rain Showers

    • 54
    • 75

    Chance Rain Showers

    • 55
    • 78

    Partly Sunny

Today 21 May Ontario

Mostly cloudy Early, then becoming mostly sunny. Cool with Highs Ranging from the lower 50s on the Hilltops to the upper 50s across the lower Elevations. Northeast Winds 5 to 10 Mph, becoming north.

Tonight 21 May Ontario

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Canandaigua Lake Temperature Statistics

May Temperature

Penn Yan, Penn Yan Airport (15.5 miles)

  • Lowest 7 May, 2026

    32 °F

  • Average May

    53.9 °F

  • Highest 18 May, 2026

    90 °F

Climate (2021–Present)

Penn Yan, Penn Yan Airport (15.5 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    59.1 °F
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