Rancho Cucamonga, CA Air Quality
ZIP 91730 · As of 8:33 PMAir quality is great — a good day to be outside.
Next 24 hours
US AQIAir quality outlook
Worst hour each day- Today45Good
- Sat 1747Good
- Sun 1859Moderate
- Mon 1998Moderate
- Tue 2059Moderate
From our air-quality forecast models (GEOS-CF / GEFS aerosols). AQI uses the US EPA scale.
Live radar
Open full mapAbout Rancho Cucamonga weather
Rancho Cucamonga is in San Bernardino County, California, United States at 34.11°, -117.59°. Right now it’s 86° and mostly clear; today’s high is 90° 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.