Fairfax Weather Forecast

    • 37
    • 64

    Mostly Sunny

    • 37
    • 68

    Sunny

    • 41
    • 70

    Mostly Sunny

    • 44
    • 70

    Mostly Cloudy

    • 43
    • 68

    Partly Sunny

    • 45
    • 71

    Partly Sunny

Today 22 Sep Western Franklin

Mostly sunny. Highs in the lower 60s. Light and variable Winds, becoming north around 10 Mph this afternoon.

Tonight 22 Sep Western Franklin

Clear. Lows in the upper 30s, except in the lower 40s along lake Champlain. Light and variable Winds.

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Fairfax Temperature Statistics

September Temperature

Burlington, Burlington International Airport (14.9 miles)

  • Lowest 19 September, 2026

    41.6 °F

  • Average September

    64.4 °F

  • Highest 3 September, 2026

    82.7 °F

Climate (2021–2026)

Burlington, Burlington International Airport (14.9 miles)

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  • Average Low 2021–2026

    41 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    58.6 °F
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