What is the air quality in Casper today?

The current Air Quality Index (AQI) in Casper is 20 (Good). PM2.5 concentration is 4.8 µg/m³.

What is the temperature in Casper right now?

The current temperature in Casper is 21.9°C (feels like 21.9°C). Humidity is 23.4% and wind speed is 57.5 km/h.

Is it safe to go outside in Casper?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 10.9 (Extreme).

Air Quality in Casper, United States

Windy

21.9°C · 23.4% humidity

21.9°

Feels 21.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

24 7am

20 10am

22 1pm

23 4pm

24 7pm

24 10pm

24 1am

24 4am

Air Quality Index Trend

34h · 1 stn

View full history →

Casper's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

23.4%

Humidity

57.5 km/h

Wind WSW

1017.8 hPa

Pressure

10.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.8 µg/m³

PM10

20.55 µg/m³

050100150200300500

What is the weather forecast for Casper?

Temperature & Precipitation

PM2.5 Trend

34h · 1 station

PM2.54.8 µg/m³ ✓ WHO

Good

PM1020.55 µg/m³

Good

UV INDEX10.9

Extreme

Station readings (2 stations within 25 km)

4.8

Median

4.8

Average

3.6

Low

6.0

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +1.2

Both models agree Avg diff: 5.4°C

Where are air quality stations near Casper?

Casper Gaseous, Wyoming, USA

6.5 km PM2.5: 6.0 µg/m³

Casper Gaseous, Wyoming, USA

6.5 km PM2.5: 3.6 µg/m³

What cities are near Casper?

26 Gillette 28 Laramie 25 Sheridan 30 Cheyenne 17 Fort Collins 25 Rock Springs 36 Rapid City 16 Loveland 12 Greeley 17 Evans

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Notify me when air quality reaches:

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 2026-09-05T16:29 UTC.