What is the air quality in Cheyenne today?

The current Air Quality Index (AQI) in Cheyenne is 49 (Good). PM2.5 concentration is 11.8 µg/m³.

What is the temperature in Cheyenne right now?

The current temperature in Cheyenne is 32.9°C (feels like 32.9°C). Humidity is 15.2% and wind speed is 62.0 km/h.

Is it safe to go outside in Cheyenne?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 14.9 (Extreme).

Air Quality in Cheyenne, United States

Windy

32.9°C · 15.2% humidity

32.9°

Feels 32.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

24 11am

49 2pm

34 5pm

27 8pm

25 11pm

25 2am

25 5am

25 8am

Air Quality Index Trend

19h · 1 stn

View full history →

Cheyenne's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

15.2%

Humidity

62.0 km/h

Wind SE

1009.7 hPa

Pressure

14.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

11.8 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Cheyenne?

Temperature & Precipitation

PM2.5 Trend

19h · 1 station

PM2.511.8 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX14.9

Extreme

Station readings (1 station within 25 km)

11.8

Median

11.8

Average

11.8

Low

11.8

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -5.8

What is the 7-day forecast for Cheyenne?

07-21

32.9° 17.9°

1.75 mm

07-22

30.1° 14.8°

0.88 mm

07-23

24.1° 12.0°

0.06 mm

07-24

29.1° 15.3°

0.31 mm

07-25

33.9° 16.8°

1.13 mm

07-26

31.3° 18.2°

2.06 mm

07-27

32.6° 15.0°

Both models agree Avg diff: 4.1°C

Where are air quality stations near Cheyenne?

Cheyenne NCore, Wyoming, USA

5.9 km PM2.5: 20.2 µg/m³

Cheyenne NCore, Wyoming, USA

5.9 km PM2.5: 7.2 µg/m³

What cities are near Cheyenne?

69 Fort Collins 37 Laramie 66 Greeley 68 Loveland 63 Evans 62 Longmont 60 Erie 50 Boulder 59 Louisville 60 Broomfield

Get AQI alerts for Cheyenne

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T20:23 UTC.