Next 24 hours

US AQI

44Now
45
44
4411 PM
43
44
442 AM
45
44
445 AM
43
43
438 AM
43
44
4611 AM
47
37
262 PM
16
27
385 PM
49
47

Air quality outlook

Worst hour each day

Today45Good
Sat 1749Good
Sun 1855Moderate
Mon 19102Unhealthy for sensitive groups
Tue 2069Moderate

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

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About Rialto weather

Rialto is in San Bernardino County, California, United States at 34.11°, -117.37°. Right now it’s 82° and 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.