Mertensia Park Weather Forecast

    • 45
    • 57

    Chance Rain Showers

    • 40
    • 64

    Partly Sunny

    • 40
    • 60

    Partly Sunny

    • 39
    • 53

    Rain Showers Likely

    • 42
    • 54

    Rain Showers Likely

    • 42
    • 60

    Chance Rain Showers

    • 47
    • 67

    Mostly Cloudy

Today 21 Apr Ontario

Mostly sunny. Highs Ranging from around 50 on the Hilltops to the mid 50s across the lower Elevations. South Winds 10 Mph or less.

Tonight 21 Apr Ontario

Mostly cloudy. Lows in the mid 40s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mertensia Park Temperature Statistics

April Temperature

Rochester, Greater Rochester International Airport (18.6 miles)

  • Lowest 8 April, 2026

    21.7 °F

  • Average April

    51.6 °F

  • Highest 18 April, 2026

    78.7 °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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