Today | Weather | Sunday, January 18, 2026

Weather in Hesperia, California

10:47 PM
Now
Cloudy Night
46° F
Feels Like 46°
Precipitation 0 %
Wind 6 mph
Humidity 46 %
Today
Cloudy Night
Day 64°
Night 36°
Precipitation 0 %
Wind 5 mph

Hesperia Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (January 18, 2025)
Sunny Weather

Day

61°

Night

30°

Wind

4 mph

UV Index

3

Precipitation

0 %

Air Quality in Hesperia

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

Pollutant Concentrations:

PM2.5 32.69 µg/m³
PM10 49.52 µg/m³
O3 0.022 ppm
NO2 27.1 ppb
SO2 1.3 ppb
CO 0.42 ppm
NH3 1.23 µg/m³
NO 0.01 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)
PM2.532.69 µg/m³
PM1049.52 µg/m³
O342.72 µg/m³
NO250.97 µg/m³
SO23.43 µg/m³
CO478.11 µg/m³
NH31.23 µg/m³
NO0.01 µg/m³