Air quality index60Moderate

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

Next 24 hours

US AQI

61Now
60
59
562 AM
52
49
515 AM
53
55
538 AM
51
49
5411 AM
60
65
662 PM
67
69
685 PM
67
67
658 PM
63
61

Air quality outlook

Worst hour each day

Today71Moderate
Thu 869Moderate
Fri 984Moderate
Sat 1057Moderate
Sun 1149Good

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

Live radar

Open full map

About Cheyenne weather

Cheyenne is in Laramie County, Wyoming, United States at 41.14°, -104.82°. Right now it’s 54° and clear; today’s high is 70° with a 0% chance of rain.

Wyoming has a semi-arid continental climate characterized by cold winters, moderate summers, and persistent wind. The state is one of the windiest in the nation, with Cheyenne and the high plains regularly experiencing sustained winds above 30 mph and gusts exceeding 60 mph. Its high average elevation of 6,700 feet contributes to cooler temperatures, lower humidity, and more intense UV radiation than states at similar latitudes.