Air quality index52Moderate

Acceptable for most people; unusually sensitive people should take it easier outdoors.

Next 24 hours

US AQI

55Now
53
51
494 AM
49
49
497 AM
48
48
4710 AM
52
56
611 PM
61
61
614 PM
60
58
577 PM
42
27
1210 PM
12
13

Air quality outlook

Worst hour each day

Today61Moderate
Fri 963Moderate
Sat 1049Good
Sun 1141Good
Mon 1235Good

From our air-quality forecast models (GEOS-CF / GEFS aerosols). AQI uses the US EPA scale.

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About Grand Junction weather

Grand Junction is in Mesa County, Colorado, United States at 39.06°, -108.55°. Right now it’s 64° and clear; today’s high is 83° with a 2% chance of rain.

Colorado's climate is defined by dramatic elevation changes, from the eastern plains at around 3,500 feet to over 50 peaks exceeding 14,000 feet in the Rocky Mountains. Denver, known as the Mile High City, enjoys over 300 days of sunshine per year and has a semi-arid climate with low humidity. Temperature swings of 40 degrees or more in a single day are not uncommon along the Front Range.