Today | Weather | Tuesday, December 9, 2025

Weather in Hesperia, California

05:16 PM
Now
Night
59° F
Feels Like 57°
Precipitation 0 %
Wind 6 mph
Humidity 39 %
Today
Sunny Weather
Day 66°
Night 37°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 3

Hesperia Weather Forecast Updated

34 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 9, 2024)
Night

Day

63°

Night

30°

Wind

8 mph

Precipitation

0 %

Air Quality in Hesperia

NOW
157 AQI
Unhealthy air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 67.81 µg/m³
PM10 91.69 µg/m³
O3 0.026 ppm
NO2 59.4 ppb
SO2 2.5 ppb
CO 0.73 ppm
NH3 2.49 µg/m³
NO 1.64 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:

Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.

Show raw pollutant concentrations (µg/m³)
PM2.567.81 µg/m³
PM1091.69 µg/m³
O351.02 µg/m³
NO2111.79 µg/m³
SO26.43 µg/m³
CO832.24 µg/m³
NH32.49 µg/m³
NO1.64 µg/m³