Today | Weather | Wednesday, February 25, 2026

Weather in Chico, California

11:00 PM
Now
Cloudy Night
57° F
Feels Like 55°
Precipitation 9 %
Wind 6 mph
Humidity 88 %
Today
Cloudy Night
Day 63°
Night 50°
Precipitation 13 %
Wind 6 mph

Chico Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 25, 2025)
Cloudy Weather

Day

66°

Night

41°

Wind

12 mph

UV Index

4

Precipitation

1 %

Air Quality in Chico

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

Pollutant Concentrations:

PM2.5 3.96 µg/m³
PM10 6.09 µg/m³
O3 0.007 ppm
NO2 3.9 ppb
SO2 0 ppb
CO 0.16 ppm
NH3 1.29 µg/m³
NO 0.08 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)
PM2.53.96 µg/m³
PM106.09 µg/m³
O314.53 µg/m³
NO27.32 µg/m³
SO20.12 µg/m³
CO182.57 µg/m³
NH31.29 µg/m³
NO0.08 µg/m³