National Weather Service Forecast for: Portsmouth VA
Issued by: National Weather Service Wakefield, VA
Updated: 3:00 pm EDT Sep 12, 2026
 
Tonight

Tonight: A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 73. South wind 3 to 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Chance
Showers
 Sunday

Sunday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 88. Southwest wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Chance
T-storms
 Sunday
Night
Sunday Night: Mostly clear, with a low around 73. Light south wind.
Mostly Clear

 Monday

Monday: Mostly sunny, with a high near 84. North wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph.
Mostly Sunny

 Monday
Night
Monday Night: Mostly clear, with a low around 67. Northeast wind around 10 mph, with gusts as high as 20 mph.
Mostly Clear

 Tuesday

Tuesday: Sunny, with a high near 81.
Sunny

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 66.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 81.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 66.
Mostly Clear
Lo 73 °F Hi 88 °F Lo 73 °F Hi 84 °F Lo 67 °F Hi 81 °F Lo 66 °F Hi 81 °F Lo 66 °F

Hazardous Weather Outlook
 

Tonight
 
 A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 73. South wind 3 to 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
 
 A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 88. Southwest wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
 
 Mostly clear, with a low around 73. Light south wind.
Monday
 
 Mostly sunny, with a high near 84. North wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph.
Monday Night
 
 Mostly clear, with a low around 67. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
 
 Sunny, with a high near 81.
Tuesday Night
 
 Mostly clear, with a low around 66.
Wednesday
 
 Sunny, with a high near 81.
Wednesday Night
 
 Mostly clear, with a low around 66.
Thursday
 
 Sunny, with a high near 84.
Thursday Night
 
 Mostly clear, with a low around 67.
Friday
 
 Sunny, with a high near 88.
Friday Night
 
 Partly cloudy, with a low around 70.
Saturday
 
 A chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Portsmouth VA.