Fairfax Weather Forecast
- 75
- 89
Chance Thunderstorms
- 76
- 95
Chance Thunderstorms
- 72
- 88
Chance Thunderstorms
- 72
- 86
Rain Showers Likely
- 70
- 89
Rain Showers Likely
- 69
- 86
Chance Rain Showers
- 70
- 86
Chance Rain Showers
Today 16 Jul Arlington/Falls Church/Alexandria
Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the lower 90s. South Winds around 10 Mph. Chance of rain 50 percent.
Tonight 16 Jul Arlington/Falls Church/Alexandria
Mostly cloudy. Showers and Thunderstorms Likely, mainly this evening. Some Thunderstorms may produce heavy rainfall this evening. Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 60 percent.
Fairfax Temperature Statistics
July Temperature
Washington/Dulles International Airport, DC (9.3 miles)
Lowest 5 July, 2025
60.7 °FAverage July
79.1 °FHighest 8 July, 2025
95.6 °F
Climate (2020–Present)
Washington/Dulles International Airport, DC (9.3 miles)
Average Low 2020–2025
47.9 °FAverage 2020–2025
58.3 °FAverage High 2020–2025
68.5 °F