Portland weather
Loading live data…Latest for Portland: NWS (National Blend (NBM)): 70° Mainly clear · American (NOAA GFS): 68° Clear · European (ECMWF): 69° Mainly clear.
The weather map: all three models at once
NWS, American, European side by side around Portland and nearby towns.Live rain radar →Next 14 hours
consensus of the three models7-day forecast
where the models agree, and where they splitPortland, OR. Below we compare what NWS, American, European forecast for Portland right now and flag exactly where they disagree, then break down Portland's weather month by month and which forecast model has been most accurate here.
Portland weather by month
what to expect in Portland through the yearHere is Portland's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to Portland by season.
What Portland's weather is like through the year
Portland runs from warm summers, with July highs near 86°F, to cold winters, when January lows sit around 35°F (a swing of about 51°F across the year). December is usually the wettest month, and Portland sees roughly 59 inches of precipitation annually.
Best time to visit Portland
The most comfortable time to visit Portland is usually May, June, September and October, when daytime highs sit in the pleasant 60-78°F range and the heaviest December rain is behind you.
Which forecast is most accurate in Portland?
CheckWeather Score — graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 40 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.
Bottom line: over the last 30 days the European model has been the most accurate forecast for Portland, scoring 94/100 on our CheckWeather Score, ahead of the American at 89. See the full US accuracy scoreboard for exactly how every model is tested.
Common questions
What's the weather in Portland today?
Will it rain in Portland today or tomorrow?
Which forecast is most accurate for Portland?
What is the warmest month in Portland?
How cold does Portland get?
How much rain does Portland get?
When is the best time to visit Portland?
Does it snow in Portland?
The forecasts Americans check
The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.