Fairfax Weather Forecast

    • 52
    • 79

    Increasing Clouds

    • 54
    • 78

    Mostly Cloudy

    • 51
    • 81

    Partly Sunny

    • 38
    • 68

    Mostly Sunny

    • 40
    • 68

    Mostly Sunny

    • 54
    • 76

    Partly Sunny

Today 16 Sep Western Franklin

Sunny. Highs in the mid 70s. Light and variable Winds.

Tonight 16 Sep Western Franklin

Clear until Midnight, then becoming partly cloudy. Lows in the mid 50s, except in the upper 50s along lake Champlain. Light and variable Winds.

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Fairfax Temperature Statistics

September Temperature

Burlington, Burlington International Airport (14.9 miles)

  • Lowest 9 September, 2025

    46.9 °F

  • Average September

    64.3 °F

  • Highest 4 September, 2025

    84 °F

Climate (2020–Present)

Burlington, Burlington International Airport (14.9 miles)

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  • Average Low 2020–2025

    41.4 °F

  • Average 2020–2025

    50 °F

  • Average High 2020–2025

    58.7 °F
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