Sunday
Chance of rain
High:
71°F
A chance of rain. Mostly cloudy, with a high near 71. Southwest wind around 9 mph becoming northwest in the afternoon. Chance of precipitation is 50%.
Herndon, VA Weather - Tomorrow’s Forecast
Sunday Night
Mostly clear
Overnight low:
45°F
Mostly clear, with a low around 45. Northwest wind around 6 mph becoming calm in the evening.