Onyon Airport Weather Forecast

    • 40
    • 66

    Patchy Fog

    • 37
    • 66

    Mostly Sunny

    • 46
    • 67

    Mostly Sunny

    • 50
    • 69

    Slight Chance Rain Showers

    • 49
    • 63

    Chance Rain Showers

    • 50
    • 64

    Chance Rain Showers

    • 50
    • 65

    Slight Chance Rain Showers

Today 22 Sep Western Windham

Partly sunny. Near steady temperature in the upper 50s. East Winds around 5 Mph.

Tonight 22 Sep Western Windham

Mostly cloudy in the Evening, then becoming partly cloudy. Patchy fog. Lows in the upper 30s. 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 15 September, 2026

    41 °F

  • Average September

    62.5 °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

    37.6 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    58.7 °F
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