Today | Weather | Thursday, December 4, 2025

Weather in Murrieta, California

01:30 AM
Now
Night
45° F
Feels Like 45°
Precipitation 0 %
Wind 5 mph
Humidity 40 %
Today
Cloudy Weather
Day 72°
Night 36°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 3

Murrieta 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

68°

Night

37°

Wind

4 mph

Precipitation

0 %

Air Quality in Murrieta

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

Pollutant Concentrations:

PM2.5 19.15 µg/m³
PM10 28.37 µg/m³
O3 0.055 ppm
NO2 1.4 ppb
SO2 0.7 ppb
CO 0.18 ppm
NH3 0.43 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)
PM2.519.15 µg/m³
PM1028.37 µg/m³
O3107.37 µg/m³
NO22.69 µg/m³
SO21.85 µg/m³
CO204.35 µg/m³
NH30.43 µg/m³
NO0 µg/m³