Mertensia Park Weather Forecast

    • 42
    • 56

    Slight Chance Rain Showers

    • 46
    • 65

    Chance Rain Showers

    • 39
    • 59

    Partly Sunny

    • 38
    • 56

    Partly Sunny

    • 40
    • 57

    Chance Rain Showers

    • 43
    • 60

    Slight Chance Rain Showers

Today 8 May Ontario

Mostly cloudy with a chance of rain Showers in the Morning, then partly sunny in the afternoon. Highs Ranging from around 50 on the Hilltops to the mid 50s across the lower Elevations. Light Winds, becoming west around 10 Mph. Chance of rain 30 percent.

Tonight 8 May Ontario

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 40s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mertensia Park Temperature Statistics

May Temperature

Rochester, Greater Rochester International Airport (18.6 miles)

  • Lowest 3 May, 2026

    34.6 °F

  • Average May

    50.5 °F

  • Highest 4 May, 2026

    74.6 °F

Climate (2021–Present)

Rochester, Greater Rochester International Airport (18.6 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.5 °F
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