Portland, OR Weather & Growing Conditions
Overnight
58°F
Areas Of Smoke
Areas of smoke. Clear. Low around 58, with temperatures rising to around 60 overnight. North wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Areas Of Smoke | 9 mph N | 0% |
| Tuesday | 93°F | Areas Of Smoke | 9 mph NNE | 0% |
| Tuesday Night | 63°F | Smoke | 5 to 9 mph N | 0% |
| Wednesday | 96°F | Areas Of Smoke | 5 mph N | 0% |
| Wednesday Night | 65°F | Clear | 2 to 6 mph NNW | 0% |
| Thursday | 95°F | Sunny | 3 mph NNW | 0% |
| Thursday Night | 63°F | Clear | 2 to 7 mph NNW | 0% |
| Friday | 90°F | Sunny | 2 to 7 mph N | 0% |
| Friday Night | 60°F | Mostly Clear | 2 to 7 mph NNW | 0% |
| Saturday | 84°F | Sunny | 2 to 9 mph NNW | 0% |
| Saturday Night | 57°F | Mostly Clear | 2 to 9 mph NNW | 0% |
| Sunday | 78°F | Sunny | 2 to 8 mph NNW | 0% |
| Sunday Night | 55°F | Mostly Clear | 2 to 8 mph NNW | 0% |
| Monday | 78°F | Sunny | 2 to 7 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Portland, OR
Last spring frost
Feb 25
First fall frost
Dec 1
Growing season
280 days
Hardiness zone
8b
Explore more for Portland, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Portland Kgw-Tv, Or (0.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.