Today | Weather | Thursday, February 5, 2026

Weather in Chico, California

05:33 PM
Now
Night
66° F
Feels Like 63°
Precipitation 0 %
Wind 5 mph
Humidity 48 %
Today
Sunny Weather
Day 73°
Night 45°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 3

Chico Weather Forecast Updated

29 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 5, 2025)
Cloudy Weather

Day

55°

Night

39°

Wind

11 mph

UV Index

3

Precipitation

25 %

Air Quality in Chico

NOW
43 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 10.4 µg/m³
PM10 13.16 µg/m³
O3 0.038 ppm
NO2 5.6 ppb
SO2 0.2 ppb
CO 0.19 ppm
NH3 2.86 µg/m³
NO 0.02 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)
PM2.510.4 µg/m³
PM1013.16 µg/m³
O374.24 µg/m³
NO210.46 µg/m³
SO20.49 µg/m³
CO222.47 µg/m³
NH32.86 µg/m³
NO0.02 µg/m³