Today | Weather | Friday, October 9, 2026

Weather in San Bernardino, California

03:19 PM
Now
Sunny Weather
97° F
Feels Like 97°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 4
Humidity 16 %
Today
Sunny Weather
Day 97°
Night 66°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 5

San Bernardino Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 9, 2025)
Cloudy Night

Day

81°

Night

64°

Wind

2 mph

Precipitation

40 %

Air Quality in San Bernardino

NOW
78 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 17.18 µg/m³
PM10 32.64 µg/m³
O3 0.063 ppm
NO2 0.6 ppb
SO2 0.8 ppb
CO 0.13 ppm
NH3 0 µg/m³
NO 0.14 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)
PM2.5 – 17.18 µg/m³
PM10 – 32.64 µg/m³
O3 – 123.88 µg/m³
NO2 – 1.04 µg/m³
SO2 – 1.99 µg/m³
CO – 143.28 µg/m³
NH3 – 0 µg/m³
NO – 0.14 µg/m³