NWS Forecast for: Herndon VA
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Last Update: 10:34 pm EDT Jul 16, 2019




Overnight: Isolated showers and thunderstorms before 1am. Mostly cloudy, with a low around 74. South wind around 5 mph. Chance of precipitation is 20%.

Wednesday: Scattered showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 95. Heat index values as high as 102. Southwest wind 5 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 74. Southwest wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 91. West wind 3 to 6 mph. Chance of precipitation is 40%.

Thursday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 74. Light west wind. Chance of precipitation is 30%.

Friday: Sunny and hot, with a high near 97.

Friday Night: Partly cloudy, with a low around 80.

Saturday: Mostly sunny and hot, with a high near 98.

Saturday Night: Partly cloudy, with a low around 80.

Sunday: A chance of showers and thunderstorms. Mostly sunny, with a high near 96. Chance of precipitation is 30%.

Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Chance of precipitation is 40%.

Monday: Showers and thunderstorms likely. Partly sunny, with a high near 89. Chance of precipitation is 60%.

Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

Tuesday: Partly sunny, with a high near 84.



Herndon VA
 38.97°N 77.38°W (Elev. 354 ft)

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