Mertensia Park Weather Forecast

    • 61
    • 79

    Increasing Clouds

    • 64
    • 81

    Chance Rain Showers

    • 66
    • 81

    Chance Rain Showers

    • 69
    • 85

    Rain Showers Likely

    • 65
    • 85

    Chance Thunderstorms

    • 62
    • 81

    Chance Rain Showers

Today 29 Aug Ontario

Sunny. Highs Ranging from the lower 70s on the Hilltops to the upper 70s across the lower Elevations. Light southwest Winds.

Tonight 29 Aug Ontario

Partly to mostly cloudy. Warmer with Lows in the lower 60s. Light Winds.

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  • Temperature Real-Time

Mertensia Park Temperature Statistics

August Temperature

Rochester, Greater Rochester International Airport (18.6 miles)

  • Lowest 21 August, 2026

    53.7 °F

  • Average August

    71.1 °F

  • Highest 5 August, 2026

    87.7 °F

Climate (2021–2026)

Rochester, Greater Rochester International Airport (18.6 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.5 °F
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