Today | Weather | Wednesday, August 12, 2026
Active Weather Warnings

Weather in Gillette, Wyoming

03:53 AM
Now
Cloudy Weather
66° F
Feels Like 64°
Precipitation 0 %
Wind 8 mph
Humidity 77 %
Today
Stormy Weather
Day 79°
Night 59°
Precipitation 55 %
Wind 12 mph
UV Index (0 - 11+) 3

Gillette Weather Forecast Updated

Last updated on

Air Quality in Gillette

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

Pollutant Concentrations:

PM2.5 12.49 µg/m³
PM10 16.26 µg/m³
O3 0.041 ppm
NO2 0.6 ppb
SO2 0.1 ppb
CO 0.12 ppm
NH3 2.12 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.512.49 µg/m³
PM1016.26 µg/m³
O380.45 µg/m³
NO21.17 µg/m³
SO20.18 µg/m³
CO135.79 µg/m³
NH32.12 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Gillette

Air Quality Alert

Air Quality Alert issued August 11 at 10:19AM MDT by NWS Rapid City SD
Aug 11, 10:19 AM Aug 12, 12:00 PM
The following message is transmitted in collaboration with the
Wyoming Department of Environmental Quality, Air Quality Division,
and the Wyoming Department of Health.

WHAT: Air Quality Alert for Wildfire Smoke.

WHERE: Northeast Wyoming.

WHEN: Through Noon MDT Wednesday.

IMPACTS: Poor air quality due to wildfire smoke.
+ Read More
The Wyoming Department of Health recommends the elderly, young children, and individuals with respiratory problems avoid excessive physical exertion and minimize outdoor activities during this time. Wildfire smoke is made up of a variety of pollutants, including particulate matter and ozone, which can cause respiratory health effect. Although these people are most susceptible to health impacts, the Department of Health also advises that everyone should avoid prolonged exposure to poor air quality conditions.
Updated: Aug 12, 2:44 AM Source: NWS Alert