Sandy Run Stream Valley Park Weather Forecast
- 56
- 73
Becoming Sunny
- 51
- 75
Rain Showers
- 44
- 65
Mostly Sunny
- 47
- 70
Slight Chance Rain Showers
- 42
- 62
Mostly Sunny
- 43
- 63
Partly Sunny
Today 18 Oct Fairfax
Partly sunny. Highs in the lower 70s. South Winds around 5 Mph.
Tonight 18 Oct Fairfax
Mostly clear. Lows in the mid 50s. Southeast Winds around 5 Mph.
Sandy Run Stream Valley Park Temperature Statistics
October Temperature
Fort Belvoir (8.1 miles)
Lowest 10 October, 2025
41.2 °FAverage October
61.5 °FHighest 6 October, 2025
83.1 °F
Climate (2020–Present)
Fort Belvoir (8.1 miles)
Average Low 2020–2025
47.9 °FAverage 2020–2025
58.1 °FAverage High 2020–2025
68.4 °F