Today | Weather | Sunday, November 1, 2026

Weather in Cheyenne, Wyoming

09:42 PM
Now
Rainy Weather
48° F
Feels Like 43°
Precipitation 67 %
Wind 7 mph
Humidity 88 %
Today
Rainy Weather
Day 52°
Night 41°
Precipitation 99 %
Wind 10 mph

Cheyenne Weather Forecast Updated

50 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 1, 2025)
Partly Sunny with Showers

Day

59°

Night

45°

Wind

9 mph

UV Index

3

Precipitation

49 %

Air Quality in Cheyenne

NOW
15 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.61 µg/m³
PM10 0.93 µg/m³
O3 0.017 ppm
NO2 2.3 ppb
SO2 0 ppb
CO 0.10 ppm
NH3 0.03 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 0.61 µg/m³
PM10 – 0.93 µg/m³
O3 – 32.63 µg/m³
NO2 – 4.26 µg/m³
SO2 – 0.01 µg/m³
CO – 110.58 µg/m³
NH3 – 0.03 µg/m³
NO – 0 µg/m³