Portland, OR Weather & Growing Conditions
Tonight
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 |
|---|---|---|---|---|
| Tonight | 41°F | Mostly Clear | 2 mph ESE | 3% |
| Wednesday | 59°F | Partly Sunny then Light Rain Likely | 3 mph SE | 63% |
| Wednesday Night | 48°F | Light Rain | 2 to 6 mph S | 89% |
| Thursday | 60°F | Mostly Sunny | 3 mph SSW | 10% |
| Thursday Night | 46°F | Mostly Cloudy then Slight Chance Light Rain | 2 mph E | 17% |
| Friday | 59°F | Chance Light Rain | 2 mph SE | 35% |
| Friday Night | 48°F | Chance Light Rain | 2 mph SE | 35% |
| Saturday | 65°F | Partly Sunny then Slight Chance Light Rain | 2 mph SSE | 15% |
| Saturday Night | 50°F | Light Rain Likely | 2 to 10 mph SSE | 70% |
| Sunday | 60°F | Light Rain Likely | 2 to 8 mph SSW | 70% |
| Sunday Night | 46°F | Slight Chance Light Rain | 2 mph ENE | 21% |
| Monday | 60°F | Chance Light Rain | 3 mph SE | 44% |
| Monday Night | 48°F | Chance Light Rain | 5 mph SSE | 51% |
| Tuesday | 62°F | Light Rain Likely | 5 mph SSE | 55% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Portland, OR
Last spring frost
Mar 13
First fall frost
Nov 19
Growing season
247 days
Hardiness zone
9a
Explore more for Portland, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Portland Intl Ap, Or (1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.