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Elev 3209 ft, 34.43 °N, 117.3 °W

Hesperia, CA Severe Weather Alertstar_ratehome

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Personal Weather Station
Location: Hesperia, CA
Elevation: 3209ft
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Air Quality Alert
Issued: 2:51 AM Jul. 11, 2026 – National Weather Service
...AIR QUALITY ALERT FOR HARMFUL FINE PARTICLE POLLUTION LEVELS DUE
TO WILDFIRE SMOKE...

* WHAT...The South Coast AQMD has issued an air quality alert due to
increased fine particle pollution from wildfire smoke.
Visit https://www.aqmd.gov/alertinfo to check current and forecasted
air quality levels.

* WHERE...at high elevation areas in the San Gabriel and San
Bernardino mountains including Big Bear Lake and Lake Arrowhead.
Levels of particle pollution can vary by time and location depending
on fire activity and local weather conditions.

* WHEN...through 5 PM Saturday. The highest impacts are expected
Friday night and Saturday morning.

* IMPACTS...Particles in wildfire smoke can get deep into the lungs
and cause serious health problems such as heart attacks, strokes,
asthma attacks, and difficulty breathing. Everyone can be affected,
but people with lung or heart disease, older adults, people who are
pregnant, children, and those who spend a lot of time outdoors are
at greater risk.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To protect your health, if you smell or see smoke:

* Remain indoors with windows and doors closed
* Avoid intense outdoor physical activity
* Run your air conditioner and/or an air purifier
* If you must be outdoors, keep the time brief and wear a well-
fitting N-95 mask
* Do not use whole house fans or swamp coolers that bring in
outside air if you have other methods to stay cool
* Avoid other sources of pollution such as fireplaces, candles,
incense, grilling, and gasoline-powered lawn and garden
equipment

For the latest air quality forecasts and information, visit the
website at aqmd.gov.

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