Today | Weather | Wednesday, February 25, 2026
Active Weather Warnings

Weather in Casper, Wyoming

09:19 PM
Now
Cloudy Night
43° F
Feels Like 32°
Precipitation 0 %
Wind 12 mph
Humidity 49 %
Today
Rainy Weather
Day 52°
Night 34°
Precipitation 94 %
Wind 25 mph
UV Index (0 - 11+) 3

Warning: Strong Winds Today: 25 mph

Casper Weather Forecast Updated

Air Quality in Casper

NOW
35 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.5 µg/m³
PM10 0.62 µg/m³
O3 0.038 ppm
NO2 0.5 ppb
SO2 0.2 ppb
CO 0.09 ppm
NH3 0.07 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)
PM2.50.5 µg/m³
PM100.62 µg/m³
O373.69 µg/m³
NO20.88 µg/m³
SO20.5 µg/m³
CO106.35 µg/m³
NH30.07 µg/m³
NO0 µg/m³