Today | Weather | Tuesday, January 13, 2026

Weather in San Bernardino, California

12:31 PM
Now
Sunny Weather
75° F
Feels Like 73°
Precipitation 0 %
Wind 15 mph
UV Index (0 - 11+) 3
Humidity 17 %
Today
Sunny Weather
Day 79°
Night 45°
Precipitation 0 %
Wind 14 mph
UV Index (0 - 11+) 3

San Bernardino Weather Forecast Updated

Weather Forecast History
Last Year's Weather on This Day (January 13, 2025)
Windy Weather

Day

63°

Night

36°

Wind

22 mph

UV Index

3

Precipitation

0 %

Air Quality in San Bernardino

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

Pollutant Concentrations:

PM2.5 32.05 µg/m³
PM10 46.6 µg/m³
O3 0.046 ppm
NO2 16.8 ppb
SO2 1.8 ppb
CO 0.39 ppm
NH3 0.88 µg/m³
NO 7.45 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)
PM2.532.05 µg/m³
PM1046.6 µg/m³
O389.69 µg/m³
NO231.57 µg/m³
SO24.64 µg/m³
CO442.14 µg/m³
NH30.88 µg/m³
NO7.45 µg/m³