Weather in Portland, United States
Weather Advisories
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Today's weather summary
The weather in Portland on Tuesday, September 17th, will be cloudy for most of the day.
Additionally, there will be clear skies before dawn, around 12 am.
Weather details for Portland, on Tuesday, September 17th:
The highest temperature of the day is going to be 62°F around 4 pm. The day will have very high relative humidity, with average humidity of 82%, ranging from 73% to a maximum value of 93% at about 11 pm. The wind will be breezy, and will get up to 10 mph at 4 pm, blowing from the south-west. The cloud coverage will range from 0% around midnight to as high as 100% around 10 pm with an average of 60%.
The precipitation probability will change throughout the day between 0% and 20%. The highest chance for precipitation will be around 8 pm and the lowest probability around midnight. The dew point will range from 47°F up to a maximum value of 57°F around 10 pm.
The visibility is expected to be good with average visibility of 10 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1013 hPa. Sunrise will be at 6:52 am, and sunset at 7:17 pm, making it a total of 12 hours and 25 minutes of daylight.
Air quality forecast for Portland, on Tuesday, September 17th:
On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 18 and 115.
Pollen forecast for Portland, on Tuesday, September 17th:
The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's very low risk of weed pollen, and as for grass pollen, this day is expected to have very low risk.
The weather in Portland on Wednesday, September 18th, is going to be mostly clear for most of the day, together with clear skies during the evening.
There is also a chance for cloud overcast before dawn around 12 am.
Weather information for Portland, on Wednesday, September 18th:
The highest temperature of the day will be 69°F at about 4 pm. The day will have very high relative humidity, with average humidity of 83%, ranging from 64% to a maximum value of 94% at about 7 am. The wind will be light, and will get up to 7 mph at 8 pm, blowing from the north-east. The cloud coverage will range from 0% around 9 pm to as high as 99% around midnight with an average of 35%.
There is no probability for any precipitation throughout the day. The dew point will range from 54°F up to a maximum value of 57°F around 11 am.
The visibility is expected to be good with average visibility of 9 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1016 hPa. Sunrise will be at 6:53 am, and sunset at 7:15 pm, making it a total of 12 hours and 22 minutes of daylight.
Air quality forecast for Portland, on Wednesday, September 18th:
On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 16 and 29.
Pollen forecast for Portland, on Wednesday, September 18th:
The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's very low risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
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