Today | Weather | Thursday, February 26, 2026

Weather in Santa Clara, California

12:38 AM
Now
Foggy Weather
57° F
Feels Like 57°
Precipitation 7 %
Wind 5 mph
Humidity 87 %
Today
Cloudy Weather
Day 73°
Night 54°
Precipitation 2 %
Wind 7 mph
UV Index (0 - 11+) 4

Santa Clara Weather Forecast Updated

35 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 26, 2025)
Sunny Weather

Day

75°

Night

48°

Wind

4 mph

UV Index

4

Precipitation

0 %

Air Quality in Santa Clara

NOW
28 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.21 µg/m³
PM10 7.53 µg/m³
O3 0.030 ppm
NO2 1.5 ppb
SO2 0.3 ppb
CO 0.12 ppm
NH3 0 µg/m³
NO 0 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.54.21 µg/m³
PM107.53 µg/m³
O358.95 µg/m³
NO22.9 µg/m³
SO20.8 µg/m³
CO138.79 µg/m³
NH30 µg/m³
NO0 µg/m³