Friday
Sunny
High:
103°F
A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 103. Northwest wind 3 to 6 mph. Chance of precipitation is 20%.
Herndon, VA Weather - Extended Forecast
Friday Night
Chance of thunderstorms
Overnight low:
78°F
A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 78. Chance of precipitation is 30%.
Independence Day
Sunny
High:
100°F
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 100. Chance of precipitation is 40%.
Saturday Night
Chance of thunderstorms
Overnight low:
75°F
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 75. Chance of precipitation is 40%.
Sunday
Mostly sunny
High:
98°F
Sunday Night
Chance of thunderstorms
Overnight low:
73°F
Monday
Mostly sunny
High:
93°F
Monday Night
Chance of thunderstorms
Overnight low:
71°F
Tuesday
Chance of showers and thunderstorms
High:
90°F