Mason Neck Weather Forecast
- 50
- 70
Chance Rain Showers
- 53
- 75
Increasing Clouds
- 57
- 78
Mostly Sunny
- 64
- 86
Sunny
- 69
- 90
Mostly Sunny
- 73
- 93
Partly Sunny
- 71
- 91
Chance Thunderstorms
Today 31 May Fairfax
Numerous Showers and scattered Thunderstorms. Highs around 70. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.
Tonight 31 May Fairfax
Mostly clear. Isolated Showers and Thunderstorms this evening. Lows in the upper 40s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph, becoming west 5 to 10 Mph after midnight. Chance of rain 20 percent.
Mason Neck Temperature Statistics
May Temperature
Fort Belvoir (3.7 miles)
Lowest 10 May, 2025
41.9 °FAverage May
66 °FHighest 16 May, 2025
89.2 °F
Climate (2020–Present)
Fort Belvoir (3.7 miles)
Average Low 2020–2025
47.9 °FAverage 2020–2025
58.1 °FAverage High 2020–2025
68.4 °F