Today | Weather | Tuesday, September 9, 2025

Weather in Denver, Colorado

04:49 PM
Now
Stormy Weather
81° F
Feels Like 77°
Precipitation 51 %
Wind 8 mph
UV Index (0 - 11+) 10
Humidity 24 %
Today
Sunny with a Chance of Thunderstorms
Day 90°
Night 57°
Precipitation 55 %
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.

Denver Weather Forecast Updated

Last updated on

Weather Forecast History

Last Year's Weather on This Day (September 9, 2024)

Partly Sunny with Showers

Day

93°

Night

63°

Wind

7 mph

UV Index

7

Precipitation

40

Air quality in Denver

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

Pollutant Concentrations:

PM2.5 5.11 µg/m³
PM10 12.72 µg/m³
O₃ 53.80 ppb
NO₂ 6.82 ppb
SO₂ 0.59 ppb
CO 159.92 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors