Flat Lick Stream Valley Park Weather Forecast

    • 50
    • 86

    Rain Showers

    • 41
    • 59

    Rain Showers

    • 32
    • 55

    Mostly Sunny

    • 47
    • 60

    Mostly Sunny

    • 48
    • 74

    Chance Rain Showers

    • 54
    • 78

    Mostly Sunny

    • 58
    • 83

    Chance Rain Showers

Today 18 Apr Eastern Loudoun

Partly sunny. Hot with Highs in the mid 80s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 18 Apr Eastern Loudoun

Mostly cloudy. Scattered Showers this Evening, then numerous Showers after midnight. Lows in the upper 40s. Southeast Winds 10 to 15 Mph, becoming north after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flat Lick Stream Valley Park Temperature Statistics

April Temperature

Washington/Dulles International Airport, DC (4.3 miles)

  • Lowest 8 April, 2026

    32.6 °F

  • Average April

    62.9 °F

  • Highest 16 April, 2026

    91.9 °F

Climate (2021–Present)

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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