Weather in Herndon, Virginia, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Herndon
Overnight |
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Temperature: 66°F Wind Speed: 0 to 3 mph Wind Direction: S Forecast: Isolated rain showers. Cloudy, with a low around 66. South wind 0 to 3 mph. Chance of precipitation is 20%. |
Friday |
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Temperature: 85°F Wind Speed: 7 to 10 mph Wind Direction: SW Forecast: Scattered rain showers between 3pm and 5pm, then scattered showers and thunderstorms. Mostly sunny, with a high near 85. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible. |
Friday Night |
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Temperature: 64°F Wind Speed: 3 to 8 mph Wind Direction: SW Forecast: Isolated showers and thunderstorms between 8pm and 1am. Partly cloudy, with a low around 64. Southwest wind 3 to 8 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible. |
Saturday |
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Temperature: 85°F Wind Speed: 5 to 13 mph Wind Direction: S Forecast: A chance of rain showers between 8am and 2pm, then showers and thunderstorms. Mostly sunny, with a high near 85. South wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible. |
Saturday Night |
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Temperature: 64°F Wind Speed: 6 to 10 mph Wind Direction: S Forecast: Showers and thunderstorms. Mostly cloudy, with a low around 64. South wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. |
Sunday |
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Temperature: 75°F Wind Speed: 9 mph Wind Direction: S Forecast: Rain showers before 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 90%. |
Sunday Night |
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Temperature: 62°F Wind Speed: 7 mph Wind Direction: SE Forecast: Showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 90%. |
Monday |
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Temperature: 73°F Wind Speed: 6 to 10 mph Wind Direction: SE Forecast: Rain showers before 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 73. Chance of precipitation is 90%. |
Monday Night |
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Temperature: 61°F Wind Speed: 6 to 10 mph Wind Direction: SE Forecast: Showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 90%. |
Tuesday |
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Temperature: 75°F Wind Speed: 8 mph Wind Direction: S Forecast: Showers and thunderstorms likely. Partly sunny, with a high near 75. Chance of precipitation is 70%. |
Tuesday Night |
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Temperature: 54°F Wind Speed: 7 mph Wind Direction: W Forecast: Showers and thunderstorms likely before 2am. Partly cloudy, with a low around 54. Chance of precipitation is 60%. |
Wednesday |
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Temperature: 75°F Wind Speed: 5 to 8 mph Wind Direction: W Forecast: A slight chance of rain showers after 2pm. Mostly sunny, with a high near 75. |
Wednesday Night |
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Temperature: 58°F Wind Speed: 6 mph Wind Direction: W Forecast: A chance of rain showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%. |
Thursday |
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Temperature: 74°F Wind Speed: 6 to 9 mph Wind Direction: NW Forecast: A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 30%. |