Lake Fairfax Park Weather Forecast

    • 68
    • 87

    Decreasing Clouds

    • 73
    • 91

    Mostly Sunny

    • 76
    • 97

    Slight Chance Thunderstorms

    • 74
    • 94

    Chance Thunderstorms

    • 73
    • 92

    Rain Showers Likely

    • 73
    • 92

    Mostly Sunny

Today 23 Jul Central and Southeast Montgomery

Mostly sunny. Highs in the mid 80s. Southeast Winds around 5 Mph.

Tonight 23 Jul Central and Southeast Montgomery

Mostly clear. Lows in the upper 60s. South Winds around 5 Mph.

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Lake Fairfax Park Temperature Statistics

July Temperature

Washington/Dulles International Airport, DC (6.8 miles)

  • Lowest 5 July, 2025

    60.7 °F

  • Average July

    79.8 °F

  • Highest 8 July, 2025

    95.6 °F

Climate (2020–Present)

Washington/Dulles International Airport, DC (6.8 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    68.5 °F
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