Sugarland Run Stream Valley Park Weather Forecast
- 70
- 90
Severe Tstms
- 63
- 85
Chance Thunderstorms
- 61
- 80
Mostly Sunny
- 64
- 82
Mostly Cloudy
- 65
- 81
Partly Sunny
- 68
- 86
Chance Rain Showers
Today 21 Jul Eastern Loudoun
Widespread Showers and scattered Thunderstorms. Some Thunderstorms may produce damaging Winds, frequent Lightning, and heavy rainfall. Highs in the upper 80s. Southwest Winds 10 to 15 Mph. Chance of rain 80 percent.
Tonight 21 Jul Eastern Loudoun
Widespread Showers and scattered Thunderstorms, mainly in the evening. Some Thunderstorms may be severe with damaging Winds, frequent Lightning, and heavy rainfall in the evening. Lows in the upper 60s. Southwest Winds 10 to 15 Mph. Chance of rain 80 percent.
Sugarland Run Stream Valley Park Temperature Statistics
July Temperature
Washington/Dulles International Airport, DC (5.6 miles)
Lowest 13 July, 2026
62.7 °FAverage July
81.5 °FHighest 4 July, 2026
99.6 °F
Climate (2021–2026)
Washington/Dulles International Airport, DC (5.6 miles)
Average Low 2021–2026
47.6 °FAverage 2021–2026
58.3 °FAverage High 2021–2026
68.6 °F