Portsmouth, VA Weather & Growing Conditions
Tonight
72°F
Mostly Cloudy
Mostly cloudy, with a low around 72. Northeast wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Mostly Cloudy | 3 to 7 mph NE | 11% |
| Saturday | 82°F | Partly Sunny | 6 to 10 mph NE | 8% |
| Saturday Night | 69°F | Partly Cloudy | 3 to 9 mph E | 8% |
| Sunday | 86°F | Sunny | 3 to 7 mph SE | 5% |
| Sunday Night | 71°F | Mostly Clear | 2 to 7 mph S | 7% |
| Monday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph N | 54% |
| Monday Night | 70°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 8 mph NE | 55% |
| Tuesday | 80°F | Showers And Thunderstorms Likely | 7 to 18 mph NE | 67% |
| Tuesday Night | 68°F | Showers And Thunderstorms Likely | 14 to 18 mph NE | 67% |
| Wednesday | 76°F | Showers And Thunderstorms Likely | 15 to 21 mph NE | 59% |
| Wednesday Night | 66°F | Showers And Thunderstorms Likely | 14 to 21 mph NE | 59% |
| Thursday | 75°F | Chance Rain Showers | 16 to 21 mph NE | 48% |
| Thursday Night | 63°F | Chance Showers And Thunderstorms | 9 to 20 mph N | 47% |
| Friday | 75°F | Chance Rain Showers | 14 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Portsmouth, VA
Last spring frost
Mar 23
First fall frost
Nov 16
Growing season
239 days
Hardiness zone
8a
Explore more for Portsmouth, VA: full frost dates · planting calendar · Virginia frost dates
Climate data from the nearest NOAA station, Norfolk S, Va (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.