Grammar Airport Weather Forecast

    • 37
    • 52

    Mostly Sunny

    • 44
    • 65

    Partly Sunny

    • 39
    • 58

    Rain Showers Likely

    • 35
    • 53

    Mostly Sunny

    • 56
    • 67

    Mostly Cloudy

    • 56
    • 73

    Chance Rain Showers

Today 8 Apr Ontario

Sunny. Highs Ranging from the upper 40s on the Hilltops to the lower 50s across the lower Elevations. Light Winds, becoming south 5 to 10 Mph.

Tonight 8 Apr Ontario

Mainly clear and breezy. Not as cold with Lows in the upper 30s. South Winds 5 to 10 Mph, increasing to 10 to 20 Mph with Gusts up to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grammar Airport Temperature Statistics

April Temperature

Penn Yan, Penn Yan Airport (16.2 miles)

  • Lowest 2 April, 2026

    34 °F

  • Average April

    47 °F

  • Highest 4 April, 2026

    70 °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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