Today | Weather | Thursday, August 21, 2025

Weather in Chico, California

05:15 PM
Now
Cloudy WeatherCloudy weather, overcast skies with clouds.
100° F
Feels Like 102°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 11
Humidity 15 %
Today
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 99°
Night 70°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Other:

Hot with plenty of bright sunlight; heat will be dangerous, minimize outdoor activity.

Chico Weather Forecast Updated

10 seconds ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (August 21, 2024)

Day

90°

Night

68°

Air quality in Chico

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

Pollutant Concentrations:

PM2.5 12.65 µg/m³
PM10 64.71 µg/m³
O₃ 53.65 ppb
NO₂ 4.05 ppb
SO₂ 0.31 ppb
CO 96.29 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.