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. South southeast wind around 3 mph. Chance of precipitation is 70%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 58°F | Partly Sunny then Light Rain Likely | 3 mph SSE | 66% |
| Tonight | 48°F | Light Rain | 3 to 7 mph SSW | 89% |
| Thursday | 59°F | Mostly Sunny | 3 mph SSW | 10% |
| Thursday Night | 45°F | Mostly Cloudy then Patchy Fog | 1 mph E | 12% |
| Friday | 58°F | Chance Light Rain | 2 mph SSE | 29% |
| Friday Night | 47°F | Chance Light Rain then Mostly Cloudy | 2 mph SE | 29% |
| Saturday | 63°F | Partly Sunny then Slight Chance Light Rain | 2 mph SE | 17% |
| Saturday Night | 50°F | Light Rain | 2 to 9 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 | 5 mph SSE | 36% |
| Tuesday | 59°F | Chance Light Rain | 5 mph S | 38% |
| Tuesday Night | 48°F | Chance Light Rain | 5 mph S | 42% |
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
9a
Explore more for Portland, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Portland Kgw-Tv, Or (5.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.