What is the air quality in Cheyenne today?

The current Air Quality Index (AQI) in Cheyenne is 13 (Good). PM2.5 concentration is 3.25 µg/m³.

What is the temperature in Cheyenne right now?

The current temperature in Cheyenne is 15.5°C (feels like 15.5°C). Humidity is 24.9% and wind speed is 56.6 km/h.

Is it safe to go outside in Cheyenne?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Cheyenne, United States

Windy

15.5°C · 24.9% humidity

15.5°

Feels 15.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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View AQI history for Cheyenne →

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.

24.9%

Humidity

56.6 km/h

Wind S

1013.7 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

3.25 µg/m³

PM10▲

27.4 µg/m³

050100150200300500

What is the weather forecast for Cheyenne?

Temperature & Precipitation

PM2.53.25 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Cheyenne?

10-21

18.2° 6.2°

10-22

11.7° 4.1°

10-23

9.4° -3.8°

12.37 mm

10-24

17.0° 6.2°

0.13 mm

10-25

12.5° 5.1°

10-26

17.7° 3.7°

10-27

15.1° -1.7°

Both models agree Avg diff: 4.4°C

What cities are near Cheyenne?

10 Fort Collins 18 Laramie 14 Greeley 12 Loveland 15 Evans 20 Longmont 24 Erie 20 Boulder 25 Louisville 26 Broomfield

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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 2026-10-21T00:31 UTC.