BREAKING WEATHER:  AIRPORT DELAYS
Weather Forecast for
Zip Code 20171 Herndon, VA

Severe Thunderstorm Watch

This Afternoon: Scattered showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 89. Southwest wind around 8 mph. Chance of precipitation is 50%.

Tonight: Showers and thunderstorms likely, mainly before 8pm. Some of the storms could be severe. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 71. Light southwest wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday: A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Patchy fog before 7am. Otherwise, sunny, then becoming mostly cloudy during the afternoon, with a high near 89. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

Sunday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 20%.

Sunday Night: Mostly clear, with a low around 71.

Monday: Sunny, with a high near 91.

Monday Night: Partly cloudy, with a low around 73.

Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 30%.

Tuesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.

Wednesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Chance of precipitation is 50%.

Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.

Thursday: A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%

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