Portland, OR Weather & Growing Conditions
Today
58°F
Partly Sunny then Light Rain Likely
Rain likely after 4pm. Partly sunny. High near 58, with temperatures falling to around 55 in the afternoon. Southeast wind around 3 mph. Chance of precipitation is 60%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 58°F | Partly Sunny then Light Rain Likely | 3 mph SE | 64% |
| Tonight | 48°F | Light Rain | 3 to 7 mph SSW | 90% |
| Thursday | 59°F | Mostly Sunny | 3 mph SW | 10% |
| Thursday Night | 45°F | Mostly Cloudy | 2 mph E | 13% |
| Friday | 58°F | Chance Light Rain | 3 mph SE | 32% |
| Friday Night | 47°F | Chance Light Rain then Mostly Cloudy | 2 mph SE | 32% |
| Saturday | 64°F | Partly Sunny then Slight Chance Light Rain | 2 mph SE | 18% |
| Saturday Night | 50°F | Light Rain | 2 to 10 mph S | 76% |
| Sunday | 57°F | Chance Light Rain | 2 to 8 mph SSW | 50% |
| Sunday Night | 45°F | Slight Chance Light Rain then Mostly Cloudy | 2 mph ENE | 15% |
| Monday | 57°F | Chance Light Rain | 2 mph ESE | 30% |
| Monday Night | 47°F | Chance Light Rain | 2 to 6 mph SSE | 38% |
| Tuesday | 59°F | Chance Light Rain | 2 to 6 mph S | 39% |
| Tuesday Night | 48°F | Chance Light Rain | 2 to 6 mph S | 42% |
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 22
Growing season
251 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 Wfo, Or (3.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.