Next 24 hours

US AQI

41Now
41
42
432 AM
43
43
425 AM
41
41
418 AM
41
43
4511 AM
47
37
262 PM
16
18
205 PM
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31
408 PM
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48

Air quality outlook

Worst hour each day

Today47Good
Sat 1749Good
Sun 1878Moderate
Mon 1973Moderate
Tue 2071Moderate

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

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About Simi Valley weather

Simi Valley is in Ventura County, California, United States at 34.27°, -118.78°. Right now it’s 85° and clear; today’s high is 91° 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.