Onyon Airport Weather Forecast

    • 54
    • 76

    Increasing Clouds

    • 55
    • 78

    Partly Sunny

    • 64
    • 77

    Rain Showers

    • 54
    • 79

    Chance Rain Showers

    • 50
    • 74

    Mostly Sunny

    • 56
    • 78

    Partly Sunny

Today 7 Sep Western Windham

Sunny. Highs in the lower 70s. Northwest Winds around 5 Mph.

Tonight 7 Sep Western Windham

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Onyon Airport Temperature Statistics

September Temperature

Keene, Dillant-Hopkins Airport (21.1 miles)

  • Lowest 5 September, 2026

    53.6 °F

  • Average September

    66 °F

  • Highest 4 September, 2026

    81 °F

Climate (2021–2026)

Keene, Dillant-Hopkins Airport (21.1 miles)

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  • Average Low 2021–2026

    37.7 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    58.7 °F
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