Flat Lick Stream Valley Park Weather Forecast

    • 63
    • 86

    Chance Rain Showers

    • 61
    • 80

    Sunny

    • 64
    • 82

    Partly Sunny

    • 65
    • 82

    Partly Sunny

    • 68
    • 86

    Partly Sunny

    • 68
    • 89

    Chance Thunderstorms

Today 22 Jul Eastern Loudoun

Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the mid 80s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 22 Jul Eastern Loudoun

Partly cloudy. Lows in the lower 60s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flat Lick Stream Valley Park Temperature Statistics

July Temperature

Washington/Dulles International Airport, DC (4.3 miles)

  • Lowest 13 July, 2026

    62.7 °F

  • Average July

    81.2 °F

  • Highest 4 July, 2026

    99.6 °F

Climate (2021–2026)

Washington/Dulles International Airport, DC (4.3 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.6 °F
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