Today | Weather | Friday, October 9, 2026

Weather in Pomona, California

04:40 AM
Now
Cloudy Night
66° F
Feels Like 66°
Precipitation 0 %
Wind 4 mph
Humidity 79 %
Today
Cloudy Weather
Day 93°
Night 64°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 5

Pomona Weather Forecast Updated

36 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 9, 2025)
Cloudy Night

Day

84°

Night

63°

Wind

4 mph

Precipitation

49 %

Air Quality in Pomona

NOW
56 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 14.79 µg/m³
PM10 34.82 µg/m³
O3 0.045 ppm
NO2 0.3 ppb
SO2 0.3 ppb
CO 0.11 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 14.79 µg/m³
PM10 – 34.82 µg/m³
O3 – 89.11 µg/m³
NO2 – 0.61 µg/m³
SO2 – 0.82 µg/m³
CO – 124.36 µg/m³
NH3 – 0 µg/m³
NO – 0 µg/m³