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Portsmouth, VA - Naval Shipyard Marine Weather Forecast

Today - 92°F
Aug 18, 2026
3 to 7 mph N
Mostly Sunny then Isolated Showers And Thunderstorms
Isolated showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 101. North wind 3 to 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Tonight - 75°F
Aug 18, 2026
2 to 6 mph E
Mostly Clear
Mostly clear, with a low around 75. East wind 2 to 6 mph. New rainfall amounts less than a tenth of an inch possible.
Wednesday - 91°F
Aug 19, 2026
2 to 6 mph NE
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 2pm and 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Mostly sunny, with a high near 91. Northeast wind 2 to 6 mph. Chance of precipitation is 30%.
Wednesday Night - 75°F
Aug 19, 2026
1 to 5 mph SE
Mostly Clear
Mostly clear, with a low around 75. Southeast wind 1 to 5 mph.
Thursday - 94°F
Aug 20, 2026
1 to 7 mph SE
Mostly Sunny then Showers And Thunderstorms Likely
Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 94. Southeast wind 1 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night - 74°F
Aug 20, 2026
2 to 7 mph S
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Friday - 88°F
Aug 21, 2026
2 to 7 mph N
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Friday Night - 73°F
Aug 21, 2026
2 to 7 mph SE
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 73. Chance of precipitation is 70%.
Saturday - 87°F
Aug 22, 2026
6 mph S
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a high near 87. Chance of precipitation is 70%.
Saturday Night - 72°F
Aug 22, 2026
2 to 6 mph S
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.
Sunday - 89°F
Aug 23, 2026
5 to 8 mph SW
Chance Rain Showers then Chance Showers And Thunderstorms
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Sunday Night - 71°F
Aug 23, 2026
5 mph W
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71. Chance of precipitation is 40%.
Monday - 87°F
Aug 24, 2026
7 mph NW
Mostly Sunny
Mostly sunny, with a high near 87.
Monday Night - 70°F
Aug 24, 2026
5 mph S
Mostly Clear
Mostly clear, with a low around 70.

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