Today | Weather | Sunday, October 4, 2026

Weather in Hesperia, California

11:24 AM
Now
Sunny Weather
84° F
Feels Like 84°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 4
Humidity 24 %
Today
Hot Day
Day 93°
Night 61°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 5

Hesperia Weather Forecast Updated

36 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 4, 2025)
Night

Day

73°

Night

45°

Wind

5 mph

Precipitation

0 %

Air Quality in Hesperia

NOW
102 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 36.03 µg/m³
PM10 56.62 µg/m³
O3 0.053 ppm
NO2 14.7 ppb
SO2 2.3 ppb
CO 0.35 ppm
NH3 1.31 µg/m³
NO 4.72 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:

Members of sensitive groups may experience health effects. The general public is not likely to be affected.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 36.03 µg/m³
PM10 – 56.62 µg/m³
O3 – 103.67 µg/m³
NO2 – 27.74 µg/m³
SO2 – 6.04 µg/m³
CO – 397.19 µg/m³
NH3 – 1.31 µg/m³
NO – 4.72 µg/m³