Portland Weather Forecast
Portland weather: 65°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
14-day forecast for Portland
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Wed, Sep 16 | ☀️ Clear sky | 74° / 54° | 2% | 10 mph | 5 |
| Thu, Sep 17 | ☁️ Overcast | 81° / 60° | 0% | 9 mph | 5 |
| Fri, Sep 18 | ⛅ Partly cloudy | 76° / 55° | 0% | 8 mph | 5 |
| Sat, Sep 19 | ☁️ Overcast | 81° / 55° | 0% | 6 mph | 5 |
| Sun, Sep 20 | 🌤️ Mainly clear | 83° / 55° | 0% | 8 mph | 5 |
| Mon, Sep 21 | ☁️ Overcast | 79° / 55° | 1% | 8 mph | 5 |
| Tue, Sep 22 | ☁️ Overcast | 73° / 54° | 3% | 7 mph | 4 |
| Wed, Sep 23 | ☁️ Overcast | 80° / 51° | 6% | 4 mph | 5 |
| Thu, Sep 24 | ☁️ Overcast | 78° / 58° | 5% | 4 mph | 4 |
| Fri, Sep 25 | ☁️ Overcast | 79° / 58° | 17% | 5 mph | 4 |
| Sat, Sep 26 | ☁️ Overcast | 86° / 60° | 8% | 6 mph | 5 |
| Sun, Sep 27 | ⛅ Partly cloudy | 83° / 60° | 16% | 5 mph | 5 |
| Mon, Sep 28 | ☁️ Overcast | 73° / 58° | 26% | 6 mph | 4 |
| Tue, Sep 29 | ☁️ Overcast | 72° / 55° | 29% | 5 mph | 5 |
The two-week trend
Steady. The second week averages within a degree of the first, so no big change is signalled.
The window averages 79°F against a September normal of 76°F - 35°F above.
The next 7 days look unusually dry - roughly 0% of a normal September week (0,0 in against 0,5 in).
What this means for Portland
Today is about average for September. The forecast high of 74°F is in line with the 76°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 63°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid January, November and December - historically the least comfortable months here.
See the Portland forecast by time range
Portland weather - more answers
Explore Portland
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Portland?
Portland is a city in Oregon. Its coordinates are 45.5152, -122.6784. It lies in North America.
What is the weather like in Portland right now?
It is currently 65°F (19°C) with clear. Humidity is 67% and wind is 8 mph.
When is the best time to visit Portland?
June, July and August offer the most comfortable conditions in Portland, which has a temperate climate. January, November and December are usually the hardest months for outdoor plans.
What time zone is Portland in?
Portland observes America/Los_Angeles (UTC-07:00). The local time is 10:14 PM.
How many people live in Portland?
Portland has a population of approximately 650.000.
What is the nearest airport to Portland?
The closest airports are Portland International Airport (PDX), 7 mi away, Seattle-Tacoma International Airport (SEA), 135 mi away and Vancouver International Airport (YVR), 255 mi away.
What are the top things to do in Portland?
Popular options include Columbia River, Silver Falls State Park, Mount Hood, Cannon Beach, Mount Rainier and Mount Rainier National Park.
What places are in Portland?
Portland covers 2 places in this atlas, including Portland International Airport and ZIP Code 97205.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated September 16, 2026 at 10:14 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
