Mertensia Park Weather Forecast

    • 55
    • 74

    Chance Thunderstorms

    • 55
    • 73

    Partly Sunny

    • 58
    • 76

    Rain Showers

    • 56
    • 72

    Rain Showers Likely

    • 56
    • 75

    Partly Sunny

    • 58
    • 77

    Chance Rain Showers

Today 19 Jun Ontario

Showers and Thunderstorms likely. Some Thunderstorms may produce small hail and heavy rainfall. Highs Ranging from the upper 60s on the Hilltops to the lower 70s across the lower Elevations. West Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 70 percent.

Tonight 19 Jun Ontario

Partly cloudy with a chance of Showers Early, then mainly clear from late evening on. Lows in the mid 50s. West Winds 10 to 20 Mph with Gusts up to 30 Mph this evening. Chance of rain 40 percent.

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  • Temperature Real-Time

Mertensia Park Temperature Statistics

June Temperature

Rochester, Greater Rochester International Airport (18.6 miles)

  • Lowest 2 June, 2026

    43.6 °F

  • Average June

    68.3 °F

  • Highest 11 June, 2026

    91.7 °F

Climate (2021–2026)

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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