Portland, OR 14-Day Forecast
Oregon, United States 🇺🇸
The 14-day forecast for Portland is temporarily unavailable - please check back shortly. Meanwhile, the monthly averages below give a reliable picture of what to expect.
Portland 14-day outlook: the story
May to July and September is the sweet spot for Portland - the dry season is running but the afternoons are still bearable. Expect 75°F (24°C) in the afternoon and around 7 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in May.
For typical conditions month by month, see the Portland climate & average temperatures guide.
Average temperatures in Portland by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 47° | 36° | 19 | 7.5 in | 4.1 h/day | 9.1 h | 61% | 85% |
| February | 48° | 35° | 16 | 5.9 in | 5.2 h/day | 10.3 h | 58% | 83% |
| March | 54° | 38° | 17 | 5.4 in | 7.4 h/day | 11.8 h | 55% | 80% |
| April | 59° | 42° | 15 | 4.4 in | 8.9 h/day | 13.5 h | 51% | 76% |
| May | 67° | 48° | 11 | 2.8 in | 10.1 h/day | 14.9 h | 35% | 73% |
| June | 75° | 53° | 8 | 2.2 in | 12.0 h/day | 15.7 h | 26% | 66% |
| July | 83° | 58° | 2 | 0.3 in | 13.2 h/day | 15.3 h | 7% | 58% |
| August | 84° | 59° | 3 | 0.5 in | 12.1 h/day | 14.1 h | 9% | 59% |
| September | 75° | 54° | 8 | 2.5 in | 9.9 h/day | 12.5 h | 26% | 68% |
| October | 63° | 47° | 12 | 5.4 in | 7.1 h/day | 10.8 h | 40% | 79% |
| November | 52° | 40° | 17 | 7.5 in | 5.1 h/day | 9.4 h | 57% | 84% |
| December | 46° | 36° | 19 | 8.9 in | 3.8 h/day | 8.7 h | 63% | 86% |
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