Mertensia Park Weather Forecast

    • 25
    • 40

    Mostly Sunny

    • 44
    • 55

    Mostly Cloudy

    • 38
    • 62

    Partly Sunny

    • 43
    • 63

    Partly Sunny

    • 47
    • 65

    Chance Rain Showers

    • 45
    • 62

    Chance Rain Showers

    • 43
    • 61

    Chance Rain Showers

Today 20 Apr Ontario

Partly sunny with scattered snow Showers Early, then mostly sunny late. Cold with Highs Ranging from the lower 30s on the Hilltops to the upper 30s across the lower Elevations. Northwest Winds 10 to 15 Mph. Chance of snow 30 percent.

Tonight 20 Apr Ontario

Mainly clear. Cold with Lows in the mid 20s. Northwest Winds 5 to 10 Mph, becoming light.

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Mertensia Park Temperature Statistics

April Temperature

Rochester, Greater Rochester International Airport (18.6 miles)

  • Lowest 8 April, 2026

    21.7 °F
  • Average April

    52.4 °F
  • Highest 18 April, 2026

    78.1 °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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