Today | Weather | Tuesday, November 11, 2025

Weather in Broomfield, Colorado

04:31 AM
Now
Cloudy Night
54° F
Feels Like 48°
Precipitation 7 %
Wind 10 mph
Humidity 18 %
Today
Cloudy Weather
Day 73°
Night 39°
Precipitation 0 %
Wind 14 mph
UV Index (0 - 11+) 3

Broomfield Weather Forecast Updated

7 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 11, 2024)

Day

61°

Night

37°

Air Quality in Broomfield

NOW
19 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.7 µg/m³
PM10 0.75 µg/m³
O3 0.021 ppm
NO2 1.1 ppb
SO2 0 ppb
CO 0.08 ppm
NH3 0.35 µg/m³
NO 0 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)
PM2.50.7 µg/m³
PM100.75 µg/m³
O340.54 µg/m³
NO22.12 µg/m³
SO20.04 µg/m³
CO87.79 µg/m³
NH30.35 µg/m³
NO0 µg/m³