Air quality index72Moderate

Acceptable for most people; unusually sensitive people should take it easier outdoors.

Next 24 hours

US AQI

81Now
73
68
632 AM
59
58
585 AM
57
54
528 AM
49
47
4511 AM
43
39
352 PM
31
37
435 PM
49
47
458 PM
43
43

Air quality outlook

Worst hour each day

Today98Moderate
Sun 1873Moderate
Mon 1978Moderate
Tue 20153Unhealthy
Wed 2182Moderate

From our air-quality forecast models (GEOS-CF / GEFS aerosols). AQI uses the US EPA scale.

Live radar

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About Aliso Viejo weather

Aliso Viejo is in Orange County, California, United States at 33.57°, -117.73°. Right now it’s 66° and mostly clear; today’s high is 82° with a 1% chance of rain.

California encompasses an extraordinary range of climates, from the Mediterranean coast to alpine peaks, scorching deserts, and temperate rainforests. The state's Central Valley is one of the most productive agricultural regions in the world, benefiting from warm, dry summers and mild, wet winters. Death Valley holds the record for the highest reliably recorded air temperature on Earth at 134 degrees Fahrenheit.