Portland Veður Spá
Portland weather: 18°C, heiðskýrt. Á klukkustund forecast, 14-day outlook, UV, air quality and the best time til visit.
14-day forecast for Portland
Hæst / Lægst; Úrkoma; UV
| Dagur | Aðstæður | Hæst / Lægst | Úrkoma | Vindur | UV |
|---|---|---|---|---|---|
| fös., sep 18 | 🌥️ Þoka | 18° / 12° | 0% | 8 km/h | 5 |
| lau., sep 19 | ☁️ Skýjað | 23° / 11° | 0% | 11 km/h | 5 |
| sun., sep 20 | ☀️ Heiðskýrt | 27° / 11° | 0% | 13 km/h | 5 |
| mán., sep 21 | ☁️ Skýjað | 24° / 13° | 0% | 11 km/h | 4 |
| þri., sep 22 | ☁️ Skýjað | 24° / 12° | 0% | 10 km/h | 5 |
| mið., sep 23 | ☁️ Skýjað | 25° / 11° | 0% | 14 km/h | 5 |
| fim., sep 24 | ☁️ Skýjað | 23° / 13° | 8% | 11 km/h | 4 |
| fös., sep 25 | ☁️ Skýjað | 24° / 14° | 17% | 12 km/h | 5 |
| lau., sep 26 | ☁️ Skýjað | 24° / 9° | 5% | 14 km/h | 5 |
| sun., sep 27 | ☀️ Heiðskýrt | 28° / 10° | 7% | 12 km/h | 5 |
| mán., sep 28 | ☁️ Skýjað | 26° / 14° | 9% | 6 km/h | 4 |
| þri., sep 29 | 🌦️ Light drizzle | 21° / 14° | 16% · 1 mm | 9 km/h | 3 |
| mið., sep 30 | ☁️ Skýjað | 20° / 13° | 5% | 14 km/h | 4 |
| fim., okt 1 | 🌤️ Að mestu heiðskýrt | 21° / 10° | 16% | 11 km/h | 4 |
The two-week trend
Steady. The second week averages within a degree of the first, so no big change is signalled.
The window averages 23°C against a september normal of 24°C - right on average.
The next 7 days look unusually dry - roughly 0% of a normal september week (0 mm against 12 mm).
What this means for Portland
Today is cooler than average for september. The forecast high of 18°C is 6.5°C below the 24°C typical for this month.
Rigning 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 júní til ágúst.
The gap between the warmest and coldest month averages 17°C.
What til pack, what til skip
- sun.glasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid janúar, nóvember and desember - historically the least comfortable months here.
Sjá spá fyrir Portland eftir tímabili
Portland weather - more answers
Explore Portland
Every topic we hold for this place, and the same topic for the places around it.
Veður 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 Norður-Ameríka.
What is the weather like in Portland núna?
It is currently 18°C (64°F) með heiðskýrt. Raki is 80% and wind is 4 km/h.
When is the best time til visit Portland?
júní, júlí and ágúst offer the most comfortable conditions in Portland, which has a temperate climate. janúar, nóvember and desember 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 5:19 PM.
How many people live in Portland?
Portland has a population of approximately 650.000.
What is the nearest airport til Portland?
The closest airports are Portland International Airport (PDX), 11 km away, Seattle-Tacoma International Airport (SEA), 217 km away and Vancouver International Airport (YVR), 411 km away.
What are the top things til do in Portland?
Popular options include Columbia River, Silver Falls State Park, Mount Hood, Cannon Beach, Mount Rigningier and Mount Rigningier 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. |
|---|---|
| Spá and observations | Open-Meteo (ECMWF and national models). |
| Loftgæði and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Loftslag averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Veður 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 18, 2026 at 5:19 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
