Weather in Portola Hills, United States
Weather Advisories
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Today's weather summary
The weather in Portola Hills on Friday, December 20th, will be clear for most of the day.
There is also a chance of few clouds before dawn, around 1 am.
Weather information for Portola Hills, on Friday, December 20th:
The maximum temperature of the day will be 64°F around 2 pm. The day will have high relative humidity, with average humidity of 65%, ranging from 48% to a maximum value of 86% at about 9 pm. The wind will be light, and will get up to 7 mph at 9 am, blowing from the south-east. The cloud coverage will range from 0% around 9 am to as high as 60% around 7 pm with an average of 9%.
There is no probability for any precipitation throughout the day. The dew point will range from 34°F up to a maximum value of 49°F around 4 pm.
The visibility is expected to be good with average visibility of 10 mi throughout the day. Atmospheric pressure will be high with average pressure of 1021 hPa. Sunrise will be at 6:40 am, and sunset at 4:55 pm. The day will have 10 hours and 15 minutes of daylight.
Air quality forecast for Portola Hills, on Friday, December 20th:
On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 54 and 96.
Pollen forecast for Portola Hills, on Friday, December 20th:
The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
The weather in Portola Hills on Saturday, December 21st, is going to be cloudy for most of the day.
There is also a chance of clear skies before dawn, at about 12 am.
Weather details for Portola Hills, on Saturday, December 21st:
The highest temperature of the day will be 60°F at about 2 pm. The day will have very high relative humidity, with average humidity of 75%, ranging from 57% to a maximum value of 84% at about 3 am. The wind will be light, and will get up to 8 mph at 1 pm, blowing from the west. The cloud coverage will range from 0% around 5 pm to as high as 100% around 11 pm with an average of 65%.
There is no probability for any precipitation throughout the day. The dew point will range from 40°F up to a maximum value of 46°F around 10 pm.
The visibility is expected to be good with average visibility of 10 mi throughout the day. Atmospheric pressure will be high with average pressure of 1021 hPa. Sunrise will be at 6:41 am, and sunset at 4:56 pm. The day will have 10 hours and 15 minutes of daylight.
Air quality forecast for Portola Hills, on Saturday, December 21st:
On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 60 and 81.
Pollen forecast for Portola Hills, on Saturday, December 21st:
The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.
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