Today | Weather | Monday, October 12, 2026

Weather in Casper, Wyoming

07:07 PM
Now
Cloudy Night
54° F
Feels Like 48°
Precipitation 49 %
Wind 9 mph
Humidity 70 %
Today
Partly Sunny with Showers
Day 57°
Night 39°
Precipitation 100 %
Wind 8 mph
UV Index (0 - 11+) 1

Casper Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 12, 2025)
Partly Sunny with Showers

Day

57°

Night

28°

Wind

24 mph

UV Index

40

Precipitation

49 %

Air Quality in Casper

NOW
30 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.5 µg/m³
PM10 0.5 µg/m³
O3 0.032 ppm
NO2 0.4 ppb
SO2 0 ppb
CO 0.07 ppm
NH3 0.24 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 – 0.5 µg/m³
PM10 – 0.5 µg/m³
O3 – 62.74 µg/m³
NO2 – 0.79 µg/m³
SO2 – 0.09 µg/m³
CO – 84.38 µg/m³
NH3 – 0.24 µg/m³
NO – 0 µg/m³