Portland, OR Weather & Growing Conditions
Overnight
41°F
Mostly Clear
Mostly clear, with a low around 41. East southeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 41°F | Mostly Clear | 2 mph ESE | 2% |
| Wednesday | 55°F | Patchy Fog then Light Rain Likely | 2 mph S | 65% |
| Wednesday Night | 48°F | Light Rain | 3 to 8 mph SSW | 87% |
| Thursday | 56°F | Mostly Sunny | 3 mph SSW | 7% |
| Thursday Night | 45°F | Mostly Cloudy then Slight Chance Light Rain | 2 mph ENE | 16% |
| Friday | 56°F | Chance Light Rain | 2 mph SSE | 30% |
| Friday Night | 48°F | Chance Light Rain then Mostly Cloudy | 2 mph SE | 30% |
| Saturday | 60°F | Partly Sunny then Slight Chance Light Rain | 2 mph SE | 19% |
| Saturday Night | 50°F | Light Rain | 1 to 10 mph S | 76% |
| Sunday | 55°F | Chance Light Rain | 1 to 8 mph SSW | 45% |
| Sunday Night | 45°F | Slight Chance Light Rain then Mostly Cloudy | 1 mph NNE | 15% |
| Monday | 54°F | Chance Light Rain | 1 mph ESE | 32% |
| Monday Night | 48°F | Chance Light Rain | 3 mph SSE | 38% |
| Tuesday | 56°F | Chance Light Rain | 3 mph S | 40% |
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 Nov 4, 2026.