Today | Weather | Thursday, March 12, 2026

Weather in Hesperia, California

06:16 AM
Now
Night
46° F
Feels Like 46°
Precipitation 0 %
Wind 5 mph
Humidity 66 %
Today
Sunny Weather
Day 82°
Night 46°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 6

Hesperia Weather Forecast Updated

53 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 12, 2025)
Partly Sunny with Showers

Day

54°

Night

43°

Wind

16 mph

UV Index

5

Precipitation

49 %

Air Quality in Hesperia

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

Pollutant Concentrations:

PM2.5 81.6 µg/m³
PM10 99.27 µg/m³
O3 0.022 ppm
NO2 40 ppb
SO2 2.2 ppb
CO 0.56 ppm
NH3 0.4 µg/m³
NO 0.03 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)
PM2.581.6 µg/m³
PM1099.27 µg/m³
O343.29 µg/m³
NO275.26 µg/m³
SO25.72 µg/m³
CO646.34 µg/m³
NH30.4 µg/m³
NO0.03 µg/m³