Onyon Airport Weather Forecast

    • 35
    • 66

    Gradual Clearing

    • 43
    • 71

    Partly Sunny

    • 43
    • 66

    Rain Showers Likely

    • 46
    • 60

    Chance Rain Showers

    • 51
    • 73

    Slight Chance Rain Showers

    • 54
    • 78

    Mostly Sunny

Today 21 May Western Windham

Mostly cloudy in the Morning, then becoming partly sunny. Cooler with Highs in the lower 60s. Light and variable Winds.

Tonight 21 May Western Windham

Mostly cloudy. Much cooler with Lows in the upper 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Onyon Airport Temperature Statistics

May Temperature

Keene, Dillant-Hopkins Airport (21.1 miles)

  • Lowest 9 May, 2026

    30 °F

  • Average May

    50.1 °F

  • Highest 5 May, 2026

    82 °F

Climate (2021–Present)

Keene, Dillant-Hopkins Airport (21.1 miles)

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  • Average Low 2021–2026

    37.8 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    58.7 °F
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