Grammar Airport Weather Forecast

    • 29
    • 42

    Rain

    • 26
    • 35

    Mostly Cloudy

    • 26
    • 35

    Snow Likely

    • 18
    • 31

    Slight Chance Snow Showers

    • 17
    • 23

    Chance Rain/Snow

    • 29
    • 38

    Chance Rain/Snow

Today 20 Feb Ontario

Some patchy fog Early, otherwise rain this Morning, then a chance of rain early this afternoon. Rain likely late. Highs Ranging from around 40 on the Hilltops to the mid 40s across the lower Elevations. Southeast Winds 10 to 15 Mph with Gusts up to 35 Mph, becoming southwest. Chance of rain near 100 percent.

Tonight 20 Feb Ontario

Mostly cloudy. A chance of rain and snow in the evening. Lows in the upper 20s. West Winds 10 to 15 Mph. Chance of precipitation 40 percent.

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Grammar Airport Temperature Statistics

February Temperature

Penn Yan, Penn Yan Airport (16.2 miles)

  • Lowest 9 February, 2026

    -4 °F

  • Average February

    20.3 °F

  • Highest 16 February, 2026

    48 °F

Climate (2021–Present)

Penn Yan, Penn Yan Airport (16.2 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    59.1 °F
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