National Weather Service Forecast for: Portsmouth VA
Issued by: National Weather Service Wakefield, VA
Updated: 2:18 pm EDT Jul 16, 2026
 
Tonight

Tonight: Widespread haze before 8pm. Mostly clear, with a low around 77. South wind around 6 mph.
Haze then
Mostly Clear

 Friday

Friday: Widespread smoke, mainly after 10am. Sunny, with a high near 91. Calm wind becoming northeast 5 to 9 mph in the morning.
Smoke

 Friday
Night
Friday Night: Widespread smoke, mainly before 10pm. Partly cloudy, with a low around 77. East wind 3 to 6 mph.
Smoke

 Saturday

Saturday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 110. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
 Saturday
Night
Saturday Night: A chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 78. Southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms

 Sunday

Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 92. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Chance
Showers then
T-storms
 Sunday
Night
Sunday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 73. Chance of precipitation is 80%.
T-storms then
Showers
Likely
 Monday

Monday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Chance
Showers then
Chance
T-storms
 Monday
Night
Monday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Chance
T-storms then
Partly Cloudy
Lo 77 °F Hi 91 °F Lo 77 °F Hi 97 °F Lo 78 °F Hi 92 °F Lo 73 °F Hi 88 °F Lo 74 °F

Hazardous Weather Outlook
Air Quality Alert
 

Tonight
 
 Widespread haze before 8pm. Mostly clear, with a low around 77. South wind around 6 mph.
Friday
 
 Widespread smoke, mainly after 10am. Sunny, with a high near 91. Calm wind becoming northeast 5 to 9 mph in the morning.
Friday Night
 
 Widespread smoke, mainly before 10pm. Partly cloudy, with a low around 77. East wind 3 to 6 mph.
Saturday
 
 A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 110. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday Night
 
 A chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 78. Southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 92. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
 
 Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 73. Chance of precipitation is 80%.
Monday
 
 A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Monday Night
 
 A chance of thunderstorms before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Tuesday
 
 A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
Tuesday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Chance of precipitation is 40%.
Wednesday
 
 Showers likely and possibly a thunderstorm. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Wednesday Night
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Thursday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.

 

Forecast from NOAA-NWS for Portsmouth VA.