Today | Weather | Thursday, September 25, 2025

Weather in Centennial, Colorado

06:19 AM
Now
Night
45° F
Feels Like 41°
Precipitation 0 %
Wind 6 mph
Humidity 84 %
Today
Sunny Weather
Day 79°
Night 48°
Precipitation 0 %
Wind 10
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.

Centennial Weather Forecast Updated

49 minutes ago
Last updated on

Air quality in Centennial

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

Pollutant Concentrations:

PM2.5 4.71 µg/m³
PM10 4.92 µg/m³
O₃ 19.20 ppb
NO₂ 9.26 ppb
SO₂ 0.42 ppb
CO 176.17 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.