Today | Weather | Monday, June 29, 2026
Active Weather Warnings

Weather in Grand Junction, Colorado

08:51 PM
Now
Night
75° F
Feels Like 73°
Precipitation 0 %
Wind 6 mph
Humidity 12 %
Today
Night
Day 84°
Night 55°
Precipitation 0 %
Wind 8 mph

Grand Junction Weather Forecast Updated

13 minutes ago
Last updated on

Air Quality in Grand Junction

NOW
229 AQI
Very unhealthy air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 179.78 µg/m³
PM10 182 µg/m³
O3 0.083 ppm
NO2 6.6 ppb
SO2 0.9 ppb
CO 0.79 ppm
NH3 9.01 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:

Health alert: everyone may experience more serious health effects.

Show raw pollutant concentrations (µg/m³)
PM2.5179.78 µg/m³
PM10182 µg/m³
O3162.63 µg/m³
NO212.5 µg/m³
SO22.29 µg/m³
CO908.36 µg/m³
NH39.01 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Grand Junction

Air Quality Alert

Air Quality Alert issued June 29 at 4:10PM MDT by NWS Grand Junction CO
Jun 29, 4:10 PM Jun 30, 9:00 AM
The Colorado Department of Public Health and Environment has
issued the following...

WHAT...Air Quality Health Advisory for Wildfire Smoke.

WHERE...Grand, Gilpin, Clear Creek, Summit, Eagle, Garfield, Mesa,
Delta, Pitkin, Lake, Park, Chaffee, Gunnison, Montrose, Ouray, San
Miguel, Dolores and northern Montezuma Counties. Locations
include, but are not limited to Granby, Hot Sulphur Springs,
Kremmling, Central City, Georgetown, Breckenridge, Eagle, Vail,
Glenwood Springs, Grand Junction, Delta, Aspen, Leadville,
Fairplay, Buena Vista, Salida, Gunnison, Montrose, Nucla, Ouray,
Telluride, and Dove Creek.

WHEN...900 AM Monday June 29 to 900 AM Tuesday June 30

IMPACTS...Areas near and downwind of large fires in southwestern
Colorado and southeastern Utah could have periods of moderate to
heavy smoke through at least Tuesday morning.

HEALTH INFORMATION...Public Health Recommendations: If smoke is
thick or becomes thick in your neighborhood you may want to remain
indoors. This is especially true for those with heart disease,
respiratory illnesses, the very young, and older adults. Consider
limiting outdoor activity when moderate to heavy smoke is present.
Consider relocating temporarily if smoke is present indoors and is
making you ill. If visibility is less than 5 miles in smoke in
your neighborhood, smoke has reached levels that are unhealthy.
Updated: Jun 29, 8:38 PM Source: NWS Alert