What is the air quality in Cheyenne today?

The current Air Quality Index (AQI) in Cheyenne is 24 (Good). PM2.5 concentration is 5.8 µg/m³.

What is the temperature in Cheyenne right now?

The current temperature in Cheyenne is 21.9°C (feels like 21.9°C). Humidity is 20.4% and wind speed is 47.3 km/h.

Is it safe to go outside in Cheyenne?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 19.9 (Extreme).

Air Quality in Cheyenne, United States

Windy

21.9°C · 20.4% humidity

21.9°

Feels 21.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

24 8am

24 11am

24 2pm

24 5pm

24 8pm

25 11pm

24 2am

24 5am

Air Quality Index Trend

22h · 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.

20.4%

Humidity

47.3 km/h

Wind ESE

1017.8 hPa

Pressure

19.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.8 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Cheyenne?

Temperature & Precipitation

PM2.5 Trend

22h · 1 station

PM2.55.8 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX19.9

Extreme

Station readings (1 station within 25 km)

5.8

Median

5.8

Average

5.8

Low

5.8

High

PM2.5 µg/m³ · Model: 5.9 · Bias: +0.1

What is the 7-day forecast for Cheyenne?

09-05

23.8° 9.5°

1.63 mm

09-06

28.1° 6.9°

0.94 mm

09-07

28.3° 12.6°

0.13 mm

09-08

22.0° 15.7°

0.13 mm

09-09

27.9° 16.7°

0.44 mm

09-10

29.1° 6.3°

1.44 mm

09-11

25.5° 9.1°

Both models agree Avg diff: 4.4°C

Where are air quality stations near Cheyenne?

Cheyenne NCore, Wyoming, USA

5.9 km PM2.5: 7.9 µg/m³

What cities are near Cheyenne?

18 Fort Collins 31 Laramie 12 Greeley 16 Loveland 17 Evans 15 Longmont 20 Erie 15 Boulder 20 Louisville 20 Broomfield

Get AQI alerts for Cheyenne

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

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T17:54 UTC.