Herndon, Virginia Weather
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Weather Forecast for Herndon, Virginia : Fairfax County
Issued: 1:29 pm EDT Jul 1, 2025 Latitude: 38.9695545 Longitude: -77.3860976 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday Thursday Independence Day Saturday Sunday Monday
80% chance of thunderstorms on This Afternoon 90% chance of thunderstorms on Tonight 50% chance of thunderstorms on Wednesday Sunny on Thursday Sunny on Independence Day Mostly Sunny on Saturday Mostly Sunny on Sunday 30% chance of thunderstorms on Monday
High: 91°F Low: 70°F High: 84°F High: 88°F High: 86°F High: 87°F High: 90°F High: 92°F
Low: 68°F Low: 66°F Low: 65°F Low: 68°F Low: 70°F  
Thunderstorms Thunderstorms Thunderstorms Sunny Sunny Mostly Sunny Mostly Sunny Thunderstorms
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Current Conditions at
WASH-DULLES - (KIAD)
90°
Feels like 96°F
Mostly Cloudy
as of 1:39 PM EDST
Rel. Humidity: 55%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
7 MPH
180° South
Cloud Level(s): Broken at 4500ft, Broken at 12900ft, Broken at 25000ft
Current Conditions at
LEESBURG/GODFREY - (KJYO)
88°
Feels like 99°F
Partly Cloudy
as of 1:35 PM EDST
Rel. Humidity: 70%
Dew Point: 77°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
5 MPH
270° West
Cloud Level(s): Scattered at 4300ft, Scattered at 5500ft, Scattered at 7000ft
Current Conditions at
FORT MEADE - (KFME)
88°
Feels like 99°F
Clear
as of 1:39 PM EDST
Rel. Humidity: 70%
Dew Point: 77°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
3 MPH
190° South
80% chance of thunderstorms This Afternoon This Afternoon... Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe and produce heavy rainfall. High near 91. Southwest wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
90% chance of thunderstorms Tonight Tonight... Showers and thunderstorms, mainly before 11pm, then showers likely and possibly a thunderstorm after 1am. Some of the storms could be severe and produce heavy rainfall. Low around 70. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
50% chance of thunderstorms Wednesday Wednesday... A chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 84. North wind 3 to 5 mph. Chance of precipitation is 50%.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 68. Calm wind.
Sunny on Thursday Thursday... Sunny, with a high near 88. Northwest wind 5 to 7 mph.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 66.
Sunny on Independence Day Independence Day... Sunny, with a high near 86.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 65.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 87.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 68.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 90.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 70.
30% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
Current Radar Image


Sun Almanac for Herndon, Virginia
Sunrise: 05:48 AM
Sunset: 8:39 PM
Civil Sunrise:05:16 AM
Civil Sunset: 9:11 PM
Nautical Sunrise: 04:36 AM
Nautical Sunset: 9:51 PM
Astro Sunrise: 03:50 AM
Astro Sunset: 10:37 PM
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