Mertensia Park Weather Forecast

    • 40
    • 68

    Mostly Sunny

    • 40
    • 62

    Partly Sunny

    • 41
    • 53

    Chance Rain Showers

    • 40
    • 53

    Rain Showers Likely

    • 40
    • 60

    Partly Sunny

    • 47
    • 66

    Chance Rain Showers

    • 46
    • 65

    Rain Showers Likely

Today 22 Apr Ontario

Mostly sunny and warm with Highs Ranging from the lower 60s on the Hilltops to the upper 60s across the lower Elevations. Light Winds, becoming northwest 10 to 15 Mph.

Tonight 22 Apr Ontario

Mainly clear. Lows around 40. Northwest Winds 5 to 10 Mph, becoming light.

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  • 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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