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Altadena, California, United States
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Nearby popular places
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Weather in Altadena, United States

83°
Partly cloudy
Feels like 84°
·
High99°Low64°
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Air quality

Full Details
0
117
500
Air quality:Unhealthy for sensitive groups

Pollen index

Full Details
Tree
0/5
012345
Weed
0/5
012345
Grass
0/5
012345

Today's weather summary

The weather in Altadena on Tuesday, July 14th, will be clear throughout the day.

Additionally, there will be few clouds before dawn, at about 12 am.

Weather details for Altadena, on Tuesday, July 14th:

The maximum temperature of the day is going to be 99°F at about 2 pm. The day will have comfortable humidity, with average humidity of 52%, ranging from 27% to a maximum value of 82% at about 6 am. The wind will be breezy, and will get up to 16 mph at 4 pm, blowing from the west. The cloud coverage will range from 0% around 1 am to as high as 35% around midnight with an average of 2%.

There is no probability for any precipitation throughout the day. The dew point will range from 54°F up to a maximum value of 61°F around 5 am.

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 5:48 am, and sunset at 8:01 pm, making it a total of 14 hours and 13 minutes of daylight.

Air quality forecast for Altadena, on Tuesday, July 14th:

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 65 and 82.

Pollen forecast for Altadena, on Tuesday, July 14th:

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 Altadena on Wednesday, July 15th, is going to be clear all day long.

Weather information for Altadena, on Wednesday, July 15th:

The highest temperature of the day will be 103°F around 4 pm. The day will be dry, with average humidity of 39%, ranging from 21% to a maximum value of 63% at about 5 am. The wind will be breezy, and will get up to 16 mph at 3 pm, blowing from the west. The sky will be clear of clouds along the day.

There is no probability for any precipitation throughout the day. The dew point will range from 53°F up to a maximum value of 57°F around 3 am.

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 1009 hPa. Sunrise will be at 5:49 am, and sunset at 8:01 pm. The day will have 14 hours and 12 minutes of daylight.

Air quality forecast for Altadena, on Wednesday, July 15th:

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 66 and 74.

Pollen forecast for Altadena, on Wednesday, July 15th:

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.

FAQ

How warm does it get in Altadena?
The average annual highest temperature in Altadena is 34.3°C (93.7°F), and the August 29th is the hottest day on average.
How cold does it get in Altadena?
The average annual lowest temperature in Altadena is 3.9°C (39.0°F), and the January 1st is the coldest day on average.
Which month has the most rain in Altadena?
The wettest months in Altadena are December and January.