Onyon Airport Weather Forecast

    • 49
    • 80

    Partly Sunny

    • 53
    • 76

    Mostly Cloudy

    • 55
    • 82

    Mostly Sunny

    • 43
    • 76

    Mostly Sunny

    • 43
    • 70

    Mostly Sunny

    • 50
    • 74

    Mostly Sunny

Today 16 Sep Western Windham

Patchy dense fog in the morning. Mostly sunny. Highs in the mid 70s. Light and variable Winds.

Tonight 16 Sep Western Windham

Partly cloudy in the Evening, then becoming mostly 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 9 September, 2025

    37.9 °F

  • Average September

    61.1 °F

  • Highest 2 September, 2025

    80.1 °F

Climate (2020–Present)

Keene, Dillant-Hopkins Airport (21.1 miles)

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  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    48.3 °F

  • Average High 2020–2025

    59 °F
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