Today | Weather | Monday, September 21, 2026

Weather in Gillette, Wyoming

09:26 PM
Now
Cloudy Night
59° F
Feels Like 55°
Precipitation 0 %
Wind 12 mph
Humidity 74 %
Today
Cloudy Weather
Day 66°
Night 50°
Precipitation 17 %
Wind 6 mph
UV Index (0 - 11+) 4

Gillette Weather Forecast Updated

Air Quality in Gillette

NOW
32 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.85 µg/m³
PM10 6.59 µg/m³
O3 0.035 ppm
NO2 0.6 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 0.86 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)
PM2.51.85 µg/m³
PM106.59 µg/m³
O368.17 µg/m³
NO21.06 µg/m³
SO20.27 µg/m³
CO130.43 µg/m³
NH30.86 µg/m³
NO0 µg/m³