| NWS Forecast for: Fairfax VA Issued by: National Weather Service Baltimore, MD/Washington, D.C. Last Update: 4:53 pm EDT Jul 19, 2026 | |
| Tonight: Partly cloudy, with a low around 66. North wind 5 to 7 mph becoming calm in the evening. Monday: Mostly sunny, with a high near 83. Light and variable wind becoming south around 6 mph in the afternoon. Monday Night: A chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 69. South wind around 7 mph. Chance of precipitation is 40%. Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 86. South wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. Tuesday Night: Showers and possibly a thunderstorm before 5am, then showers likely. Low around 71. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Wednesday: Showers likely, with thunderstorms also possible after 11am. Partly sunny, with a high near 85. Chance of precipitation is 60%. Wednesday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 30%. Thursday: Sunny, with a high near 78. Thursday Night: Mostly clear, with a low around 63. Friday: Sunny, with a high near 81. Friday Night: Partly cloudy, with a low around 65. Saturday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 20%. Saturday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 20%. Sunday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 20%. | |
| Fairfax VA 38.85°N 77.29°W (Elev. 400 ft) | |
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