Lake Fairfax Park Weather Forecast

    • 50
    • 83

    Increasing Clouds

    • 33
    • 57

    Rain Showers Likely

    • 37
    • 52

    Partly Sunny

    • 43
    • 60

    Mostly Cloudy

    • 48
    • 66

    Chance Rain

    • 34
    • 59

    Chance Rain/Snow

Today 22 Mar Central and Southeast Montgomery

Partly sunny. Highs in the lower 80s. South Winds 5 to 10 Mph.

Tonight 22 Mar Central and Southeast Montgomery

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the Evening, then Showers with a chance of Thunderstorms after midnight. Lows in the upper 40s. Southwest Winds 5 to 10 Mph, becoming northwest after midnight. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Fairfax Park Temperature Statistics

March Temperature

Washington/Dulles International Airport, DC (6.8 miles)

  • Lowest 18 March, 2026

    23.6 °F

  • Average March

    49.3 °F

  • Highest 11 March, 2026

    86.6 °F

Climate (2021–Present)

Washington/Dulles International Airport, DC (6.8 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.4 °F
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