Grammar Airport Weather Forecast

    • 13
    • 25

    Blowing Snow

    • 27
    • 34

    Mostly Cloudy

    • 32
    • 43

    Chance Rain Showers

    • 31
    • 46

    Chance Rain/Snow

    • 32
    • 44

    Chance Rain/Snow

    • 26
    • 47

    Chance Rain/Snow

Today 17 Mar Ontario

Partly sunny this Morning, then becoming mostly cloudy. Patchy blowing snow. Windy, cold with Highs Ranging from 15 to 20 on the Hilltops to the mid 20s across the lower Elevations. West Winds 15 to 30 Mph with Gusts up to 50 Mph.

Tonight 17 Mar Ontario

Partly cloudy and cold with Lows 10 to 15. West Winds 10 to 20 Mph with Gusts up to 30 Mph in the Evening, becoming southwest 5 to 10 Mph.

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  • Temperature Real-Time

Grammar Airport Temperature Statistics

March Temperature

Penn Yan, Penn Yan Airport (16.2 miles)

  • Lowest 2 March, 2026

    10 °F

  • Average March

    39.6 °F

  • Highest 10 March, 2026

    72 °F

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

    50.4 °F

  • Average High 2021–2026

    59.2 °F
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