Onyon Airport Weather Forecast

    • 56
    • 75

    Rain Showers

    • 42
    • 68

    Sunny

    • 51
    • 71

    Mostly Sunny

    • 58
    • 79

    Mostly Cloudy

    • 58
    • 77

    Chance Rain Showers

    • 53
    • 75

    Chance Rain Showers

Today 13 Sep Western Windham

Mostly cloudy. Showers with a slight chance of Thunderstorms this Morning, then a chance of Showers this afternoon. Highs in the lower 70s. Light and variable Winds. Chance of rain 90 percent.

Tonight 13 Sep Western Windham

Partly cloudy in the Evening, then mostly cloudy with scattered Showers after midnight. Lows in the lower 50s. Light and variable Winds, becoming west around 5 Mph after midnight. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Onyon Airport Temperature Statistics

September Temperature

Keene, Dillant-Hopkins Airport (21.1 miles)

  • Lowest 7 September, 2026

    46.4 °F

  • Average September

    64.7 °F

  • Highest 10 September, 2026

    82 °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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