Mertensia Park Weather Forecast

    • 21
    • 25

    Chance Snow Showers

    • 13
    • 29

    Snow Showers

    • 12
    • 21

    Chance Snow Showers

    • 17
    • 25

    Chance Snow Showers

    • 16
    • 28

    Slight Chance Snow Showers

    • 18
    • 28

    Mostly Cloudy

Today 30 Dec Ontario

Lake effect snow Showers and Areas of blowing snow. Visibility one quarter mile or less at Times in the morning. Additional accumulation 1 to 2 Inches in the most persistent Snows. Very windy and much Colder with Highs Ranging from around 20 on the Hilltops to the mid 20s across the lower Elevations. West Winds 30 to 40 Mph with Gusts up to 50 Mph, Diminishing to 20 to 30 Mph. Chance of snow 80 percent.

Tonight 30 Dec Ontario

Patchy blowing snow in the evening. A chance of snow Showers in the Evening, then lake effect snow Showers likely overnight. Windy. Near steady Temperatures Ranging from around 20 on the Hilltops to the lower 20s across the lower Elevations. West Winds 20 to 30 Mph with Gusts up to 40 Mph in the Evening, Diminishing to 10 to 15 Mph. Chance of snow 70 percent.

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Mertensia Park Temperature Statistics

December Temperature

Rochester, Greater Rochester International Airport (18.6 miles)

  • Lowest 8 December, 2025

    3.9 °F

  • Average December

    27.2 °F

  • Highest 18 December, 2025

    54 °F

Climate (2020–Present)

Rochester, Greater Rochester International Airport (18.6 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    50.9 °F

  • Average High 2020–2025

    59.5 °F
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