Today | Weather | Sunday, October 5, 2025

Weather in Casper, Wyoming

04:15 PM
Now
Rainy Weather
46° F
Feels Like 41°
Precipitation 52 %
Wind 9 mph
UV Index (0 - 11+) 5
Humidity 72 %
Today
Rainy Weather
Day 46°
Night 37°
Precipitation 92 %
Wind 8 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Casper Weather Forecast Updated

Last updated on

Air quality in Casper

NOW
31 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.68 µg/m³
PM10 0.76 µg/m³
O₃ 36.55 ppb
NO₂ 0.86 ppb
SO₂ 0.23 ppb
CO 107.25 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors