Sir John Addition, Virginia Weather
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Weather Forecast for Sir John Addition, Virginia : Frederick County
Issued: 4:31 pm EDT Jul 1, 2025 Latitude: 39.2551024 Longitude: -78.1558344 View on Google Maps

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Tonight Wednesday Thursday Independence Day Saturday Sunday Monday Tuesday
70% chance of thunderstorms on Tonight 30% chance of thunderstorms on Wednesday Sunny on Thursday Sunny on Independence Day Sunny on Saturday Mostly Sunny on Sunday 30% chance of thunderstorms on Monday 50% chance of thunderstorms on Tuesday
Low: 68°F High: 85°F High: 86°F High: 87°F High: 87°F High: 90°F High: 91°F High: 90°F
Low: 65°F Low: 64°F Low: 63°F Low: 66°F Low: 69°F Low: 70°F  
Thunderstorms Thunderstorms Sunny Sunny Sunny Mostly Sunny Thunderstorms Thunderstorms
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Current Conditions at
WINCHESTER RGNL - (KOKV)
68°
Cloudy
Thunderstorm In Vicinity
as of 6:15 PM EDST
Rel. Humidity: 88%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
6 MPH
320° Northwest
Cloud Level(s): Broken at 3100ft, Broken at 6500ft, Solid Overcast at 9000ft
Current Conditions at
MARTINSBURG - (KMRB)
72°
Mostly Cloudy
Light Rain
as of 5:53 PM EDST
Rel. Humidity: 83%
Dew Point: 66°F
Visibility: 6 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
5 MPH
340° North
Cloud Level(s): Broken at 8000ft
Current Conditions at
LEESBURG/GODFREY - (KJYO)
75°
Mostly Cloudy
Light Thunderstorm Rain In Vicinity
as of 6:15 PM EDST
Rel. Humidity: 100%
Dew Point: 75°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
5 MPH
320° Northwest
Cloud Level(s): Scattered at 6000ft, Scattered at 9000ft, Broken at 11000ft
Current Conditions at
HAGERSTOWN - (KHGR)
73°
Mostly Cloudy
as of 5:53 PM EDST
Rel. Humidity: 78%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 3300ft, Scattered at 4900ft, Broken at 11000ft
70% chance of thunderstorms Tonight Tonight... Showers and thunderstorms likely before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could be severe and produce heavy rainfall. Mostly cloudy, with a low around 68. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
30% chance of thunderstorms Wednesday Wednesday... A chance of showers before 10am, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 85. Light and variable wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 65. Calm wind.
Sunny on Thursday Thursday... Sunny, with a high near 86. Northwest wind 3 to 7 mph.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 64. Northwest wind around 5 mph becoming calm in the evening.
Sunny on Independence Day Independence Day... Sunny, with a high near 87.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 63.
Sunny on Saturday Saturday... Sunny, with a high near 87.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 66.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 90.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 69.
30% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
30% chance of thunderstorms Monday Night Monday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
50% chance of thunderstorms Tuesday Tuesday... A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 50%.
Current Radar Image


Sun Almanac for Sir John Addition, Virginia
Sunrise: 05:50 AM
Sunset: 8:43 PM
Civil Sunrise:05:18 AM
Civil Sunset: 9:15 PM
Nautical Sunrise: 04:38 AM
Nautical Sunset: 9:56 PM
Astro Sunrise: 03:51 AM
Astro Sunset: 10:42 PM
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