Sugarland Run Stream Valley Park Weather Forecast

    • 26
    • 57

    Rain Showers

    • 35
    • 44

    Partly Sunny

    • 24
    • 49

    Partly Sunny

    • 28
    • 39

    Mostly Cloudy

    • 37
    • 46

    Mostly Cloudy

    • 37
    • 51

    Mostly Cloudy

Today 19 Dec Eastern Loudoun

Mostly cloudy with rain with a slight chance of Thunderstorms in the Morning, then mostly sunny with a slight chance of rain in the afternoon. Breezy with Highs in the mid 50s. Temperature falling into the upper 30s in the afternoon. West Winds 15 to 25 Mph. Gusts up to 35 Mph, increasing to 50 Mph in the afternoon. Chance of rain 90 percent.

Tonight 19 Dec Eastern Loudoun

Showers. Lows in the mid 40s. Temperature rising into the mid 50s through Sunrise. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 80 percent.

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Sugarland Run Stream Valley Park Temperature Statistics

December Temperature

Washington/Dulles International Airport, DC (5.6 miles)

  • Lowest 9 December, 2025

    14 °F
  • Average December

    31.3 °F
  • Highest 10 December, 2025

    45 °F

Climate (2020–Present)

Washington/Dulles International Airport, DC (5.6 miles)

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  • Average Low 2020–2025

    47.6 °F
  • Average 2020–2025

    58.2 °F
  • Average High 2020–2025

    68.4 °F
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