Grammar Airport Weather Forecast

    • 20
    • 25

    Snow Likely

    • 12
    • 26

    Snow Showers Likely

    • 24
    • 27

    Chance Snow Showers

    • 34
    • 38

    Chance Rain Showers

    • 30
    • 40

    Mostly Cloudy

    • 36
    • 42

    Mostly Cloudy

Today 3 Jan Ontario

Partly sunny in the Morning, then becoming cloudy. Highs Ranging from around 20 on the Hilltops to the mid 20s across the lower Elevations. West Winds 10 Mph or less.

Tonight 3 Jan Ontario

Snow Showers likely. Little or no accumulation. Lows 15 to 20. Light Winds. Chance of snow 70 percent.

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Grammar Airport Temperature Statistics

January Temperature

Penn Yan, Penn Yan Airport (16.2 miles)

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Climate (2021–Present)

Penn Yan, Penn Yan Airport (16.2 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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