Today | Weather | Thursday, December 4, 2025

Weather in El Monte, California

01:29 AM
Now
Night
52° F
Feels Like 52°
Precipitation 0 %
Wind 4 mph
Humidity 64 %
Today
Cloudy Weather
Day 72°
Night 46°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 3

El Monte Weather Forecast Updated

44 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 4, 2024)
Cloudy Night

Day

66°

Night

46°

Wind

4 mph

Precipitation

0 %

Air Quality in El Monte

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

Pollutant Concentrations:

PM2.5 30.12 µg/m³
PM10 40.73 µg/m³
O3 0.045 ppm
NO2 7.5 ppb
SO2 2.1 ppb
CO 0.25 ppm
NH3 0.39 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)
PM2.530.12 µg/m³
PM1040.73 µg/m³
O387.83 µg/m³
NO214.2 µg/m³
SO25.41 µg/m³
CO289.78 µg/m³
NH30.39 µg/m³
NO0 µg/m³