Next 24 hours

US AQI

41Now
39
40
412 AM
41
40
395 AM
37
35
328 AM
29
31
3311 AM
35
38
412 PM
43
43
435 PM
43
41
388 PM
35
35

Air quality outlook

Worst hour each day

Today84Moderate
Sun 1843Good
Mon 1945Good
Tue 2047Good
Wed 2153Moderate

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

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About Antioch weather

Antioch is in Contra Costa County, California, United States at 38.00°, -121.81°. Right now it’s 71° and clear; today’s high is 87° with a 0% 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.