Jefferson Memorial Park Weather Forecast

    • 7
    • 14

    Snow

    • 7
    • 19

    Snow Likely

    • 8
    • 15

    Chance Snow Showers

    • 5
    • 17

    Mostly Cloudy

    • 3
    • 15

    Slight Chance Snow Showers

    • 7
    • 13

    Slight Chance Snow Showers

    • 6
    • 17

    Chance Snow Showers

Today 25 Jan Ontario

Snow. Snow may be heavy at Times. Additional accumulation 5 to 7 Inches. Cold with Highs 10 to 15. Southeast Winds 5 to 10 Mph, becoming east. Chance of snow near 100 percent.

Tonight 25 Jan Ontario

Snow through the early Overnight, then snow Showers late. Snow may be heavy at Times through the early overnight. Additional accumulation 2 to 4 Inches. Near steady Temperatures Ranging from between 5 and 10 above on the Hilltops to between 10 and 15 across the lower Elevations. Light Winds. Chance of snow near 100 percent.

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Jefferson Memorial Park Temperature Statistics

January Temperature

Penn Yan, Penn Yan Airport (19.9 miles)

  • Lowest 23 January, 2026

    1.9 °F

  • Average January

    27.3 °F

  • Highest 9 January, 2026

    50 °F

Climate (2021–Present)

Penn Yan, Penn Yan Airport (19.9 miles)

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  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    59.2 °F
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