Mertensia Park Weather Forecast

    • 58
    • 81

    Slight Chance Thunderstorms

    • 60
    • 79

    Increasing Clouds

    • 65
    • 81

    Rain Showers

    • 58
    • 77

    Slight Chance Thunderstorms

    • 61
    • 80

    Partly Sunny

    • 62
    • 83

    Rain Showers Likely

    • 58
    • 76

    Slight Chance Thunderstorms

Today 14 Aug Ontario

Mostly sunny. Highs Ranging from the mid 70s on the Hilltops to around 80 across the lower Elevations. Light Winds.

Tonight 14 Aug Ontario

Partly cloudy with Areas of fog developing from late evening on. Lows in the upper 50s. Light Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mertensia Park Temperature Statistics

August Temperature

Rochester, Greater Rochester International Airport (18.6 miles)

  • Lowest 4 August, 2026

    57.7 °F

  • Average August

    73.7 °F

  • Highest 5 August, 2026

    87.7 °F

Climate (2021–2026)

Rochester, Greater Rochester International Airport (18.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.6 °F
Get WillyWeather+ to remove ads