Portland, OR Weather & Growing Conditions
Today
57°F
Mostly Cloudy then Light Rain Likely
Rain likely after 4pm. Mostly cloudy. High near 57, with temperatures falling to around 55 in the afternoon. Southeast wind around 2 mph. Chance of precipitation is 60%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 57°F | Mostly Cloudy then Light Rain Likely | 2 mph SE | 63% |
| Tonight | 47°F | Light Rain | 3 mph S | 91% |
| Thursday | 59°F | Patchy Fog then Mostly Sunny | 2 mph S | 5% |
| Thursday Night | 45°F | Patchy Fog then Slight Chance Light Rain | 1 mph ESE | 23% |
| Friday | 58°F | Chance Light Rain | 2 mph SE | 34% |
| Friday Night | 47°F | Chance Light Rain then Mostly Cloudy | 1 mph NE | 34% |
| Saturday | 63°F | Partly Sunny then Slight Chance Light Rain | 2 mph SSE | 21% |
| Saturday Night | 50°F | Light Rain | 2 to 8 mph S | 76% |
| Sunday | 58°F | Chance Light Rain | 1 to 6 mph SSW | 41% |
| Sunday Night | 45°F | Slight Chance Light Rain then Mostly Cloudy | 1 mph NNE | 15% |
| Monday | 57°F | Chance Light Rain | 2 mph E | 33% |
| Monday Night | 47°F | Chance Light Rain | 3 mph SSE | 40% |
| Tuesday | 59°F | Chance Light Rain | 1 to 5 mph S | 40% |
| Tuesday Night | 48°F | Chance Light Rain | 3 mph SSE | 43% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Portland, OR
Last spring frost
Mar 29
First fall frost
Nov 9
Growing season
223 days
Hardiness zone
9a
Explore more for Portland, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Vancouver Pearson Ap, Wa (4.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.