Saturday
Mostly sunny
High:
93°F
Mostly sunny, with a high near 93. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Herndon, VA Weather - Extended Forecast
Saturday Night
Chance of thunderstorms
Overnight low:
70°F
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 50%.
Sunday
Mostly sunny
High:
89°F
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Sunday Night
Chance of thunderstorms
Overnight low:
67°F
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Monday
Mostly sunny
High:
83°F
Monday Night
Mostly clear
Overnight low:
61°F
Tuesday
Sunny
High:
83°F
Tuesday Night
Mostly clear
Overnight low:
63°F
Wednesday
Mostly sunny
High:
87°F