Today | Weather | Saturday, May 16, 2026

Weather in Corona, California

05:29 AM
Now
Cloudy Weather
57° F
Feels Like 57°
Precipitation 0 %
Wind 5 mph
Humidity 89 %
Today
Cloudy Weather
Day 75°
Night 57°
Precipitation 3 %
Wind 12 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Corona Weather Forecast Updated

56 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (May 16, 2025)
Cloudy Weather

Day

79°

Night

55°

Wind

7 mph

UV Index

11

Precipitation

0 %

Air Quality in Corona

NOW
42 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.73 µg/m³
PM10 20.21 µg/m³
O3 0.045 ppm
NO2 0.2 ppb
SO2 0.3 ppb
CO 0.10 ppm
NH3 0 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.55.73 µg/m³
PM1020.21 µg/m³
O388.44 µg/m³
NO20.38 µg/m³
SO20.69 µg/m³
CO115.35 µg/m³
NH30 µg/m³
NO0 µg/m³