Portland, OR Weather & Growing Conditions
Today
58°F
Mostly Cloudy then Light Rain Likely
Rain likely after 4pm. Mostly cloudy. High near 58, with temperatures falling to around 55 in the afternoon. South southeast wind around 2 mph. Chance of precipitation is 60%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 58°F | Mostly Cloudy then Light Rain Likely | 2 mph SSE | 64% |
| Tonight | 48°F | Light Rain | 3 mph S | 87% |
| Thursday | 57°F | Patchy Fog then Partly Sunny | 2 mph SSE | 5% |
| Thursday Night | 45°F | Patchy Fog | 2 mph E | 9% |
| Friday | 55°F | Chance Light Rain | 3 mph SE | 52% |
| Friday Night | 48°F | Chance Light Rain | 2 mph ESE | 52% |
| Saturday | 64°F | Patchy Fog then Slight Chance Light Rain | 3 mph SE | 15% |
| Saturday Night | 50°F | Light Rain | 3 to 10 mph SSE | 80% |
| Sunday | 58°F | Light Rain Likely | 1 to 7 mph SW | 55% |
| Sunday Night | 45°F | Mostly Cloudy | 1 mph N | 7% |
| Monday | 57°F | Mostly Cloudy then Slight Chance Light Rain | 2 mph ESE | 16% |
| Monday Night | 47°F | Chance Light Rain | 5 mph SSE | 36% |
| Tuesday | 59°F | Chance Light Rain | 6 mph SSE | 47% |
| Tuesday Night | 49°F | Chance Light Rain | 3 to 7 mph SSE | 46% |
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 (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.