Mertensia Park Weather Forecast

    • 54
    • 67

    Increasing Clouds

    • 53
    • 63

    Rain Showers Likely

    • 54
    • 64

    Mostly Cloudy

    • 53
    • 70

    Mostly Cloudy

    • 57
    • 74

    Mostly Cloudy

    • 58
    • 74

    Chance Rain Showers

Today 26 Sep Ontario

Mostly sunny through early Afternoon, then becoming partly sunny. Highs Ranging from the lower 60s on the Hilltops to the mid 60s across the lower Elevations. Light Winds, becoming north 10 to 15 Mph.

Tonight 26 Sep Ontario

Mostly cloudy. Lows in the mid 50s. North Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph.

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  • Temperature Real-Time

Mertensia Park Temperature Statistics

September Temperature

Rochester, Greater Rochester International Airport (18.6 miles)

  • Lowest 24 September, 2026

    43 °F

  • Average September

    65.3 °F

  • Highest 2 September, 2026

    85.6 °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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