Portsmouth, VA Weather & Growing Conditions
This Afternoon
78°F
Mostly Sunny
Mostly sunny, with a high near 78. South wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Mostly Sunny | 8 mph S | 0% |
| Tonight | 63°F | Mostly Cloudy | 8 mph S | 1% |
| Thursday | 79°F | Mostly Cloudy | 6 to 12 mph S | 12% |
| Thursday Night | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 8 mph S | 34% |
| Friday | 74°F | Showers And Thunderstorms | 8 mph SW | 97% |
| Friday Night | 57°F | Showers And Thunderstorms | 2 to 9 mph NW | 97% |
| Saturday | 65°F | Mostly Sunny | 12 mph NW | 4% |
| Saturday Night | 47°F | Mostly Clear | 9 mph NW | 2% |
| Sunday | 62°F | Sunny | 7 to 10 mph NW | 1% |
| Sunday Night | 47°F | Mostly Clear | 7 mph W | 1% |
| Monday | 63°F | Sunny | 6 to 10 mph NW | 1% |
| Monday Night | 47°F | Mostly Clear | 6 mph W | 2% |
| Tuesday | 67°F | Sunny | 7 to 10 mph SW | 2% |
| Tuesday Night | 50°F | Partly Cloudy | 5 to 8 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Portsmouth, VA
Last spring frost
Mar 16
First fall frost
Nov 26
Growing season
255 days
Hardiness zone
8b
Explore more for Portsmouth, VA: full frost dates · planting calendar · Virginia frost dates
Climate data from the nearest NOAA station, Norfolk Nas, Va (6.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.