South Bristol Weather Forecast

    • 64
    • 81

    Chance Rain Showers

    • 62
    • 79

    Rain Showers Likely

    • 61
    • 77

    Slight Chance Thunderstorms

    • 61
    • 79

    Chance Thunderstorms

    • 56
    • 75

    Chance Rain Showers

    • 56
    • 71

    Partly Sunny

    • 57
    • 73

    Partly Sunny

Today 9 Aug Ontario

Sunny. Highs Ranging from the upper 70s on the Hilltops to the lower 80s across the lower Elevations. West Winds 10 Mph or Less, becoming northwest.

Tonight 9 Aug Ontario

Mainly clear Early, then becoming mostly cloudy. Lows in the mid 60s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Bristol Temperature Statistics

August Temperature

Penn Yan, Penn Yan Airport (18.6 miles)

  • Lowest 4 August, 2026

    59 °F

  • Average August

    72.5 °F

  • Highest 5 August, 2026

    88 °F

Climate (2021–2026)

Penn Yan, Penn Yan Airport (18.6 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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