Grammar Airport Weather Forecast

    • 66
    • 87

    Areas Smoke

    • 62
    • 84

    Areas Smoke

    • 64
    • 82

    Chance Rain Showers

    • 63
    • 82

    Rain Showers Likely

    • 63
    • 80

    Slight Chance Thunderstorms

    • 66
    • 85

    Chance Thunderstorms

Today 15 Jul Ontario

Partly to mostly sunny. Areas of smoke. Highs Ranging from the lower 80s on the Hilltops to the upper 80s across the lower Elevations. West Winds 10 to 15 Mph, becoming northwest.

Tonight 15 Jul Ontario

Partly cloudy. Areas of smoke. Lows in the mid 60s. Northwest Winds 10 Mph or less.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grammar Airport Temperature Statistics

July Temperature

Penn Yan, Penn Yan Airport (16.2 miles)

  • Lowest 12 July, 2026

    54 °F

  • Average July

    75.4 °F

  • Highest 1 July, 2026

    95 °F

Climate (2021–2026)

Penn Yan, Penn Yan Airport (16.2 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    59.1 °F
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