Mertensia Park Weather Forecast

    • 54
    • 73

    Partly Sunny

    • 50
    • 72

    Partly Sunny

    • 54
    • 75

    Mostly Sunny

    • 60
    • 76

    Mostly Cloudy

    • 65
    • 82

    Chance Rain Showers

    • 53
    • 74

    Chance Rain Showers

Today 5 Sep Ontario

Some patchy fog in the Morning, otherwise mostly sunny. Highs Ranging from the upper 60s on the Hilltops to the lower 70s across the lower Elevations. Light Winds, becoming north around 10 Mph.

Tonight 5 Sep Ontario

Partly cloudy with some patchy fog developing overnight. Lows in the mid 50s. Light Winds.

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Mertensia Park Temperature Statistics

September Temperature

Rochester, Greater Rochester International Airport (18.6 miles)

  • Lowest 2 September, 2026

    68 °F

  • Average September

    74.4 °F

  • Highest 2 September, 2026

    84 °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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