Hour-by-hour environmental exposure forecast for Las Vegas. Know when to go out and when to stay in.

Air Quality Index 20
Temperature181.6°F
Humidity11.0%
Wind Speed1.7 mph
NOTICE: Safety and air quality are subjective and fluctuate in real-time. This report is a data-driven starting point. Always exercise personal judgment, stay aware of your surroundings, and consult official local law enforcement or health department resources for real-time safety and health advice.
Good 20 AQI · Total Lung Freedom Updated: May 17, 1:29 PM

The inland setting means local environmental conditions are shaped more by urban density than coastal influences.

In line with average conditions across Las Vegas

24-Hour AQI Trend

AQI trend chart — current reading: 20 (Total Lung Freedom). May 17, 1:29 PM.

Pollutant Breakdown

PM2.5 8.60 µg/m³ Fine particulate matter — penetrates deep into lungs
PM10 33.20 µg/m³ Coarse particulate matter — dust and pollen
NO₂ 2.30 ppb Nitrogen dioxide — traffic and combustion marker
O₃ 94.00 ppb Ground-level ozone — forms in sunlight from pollutants

Peer Comparison

In line with average conditions across Las Vegas

Las Vegas
20

Why Las Vegas's Air Is What It Is

Las Vegas sits in an inland urban setting where local environmental conditions are shaped primarily by density and development patterns. Temperature swings between day and night can be more pronounced than in coastal areas.

Historical Context

Current AQI of 20 reflects recent monitoring data. Local conditions can shift with weather patterns, traffic volume, and seasonal factors.

24-Hour Hourly Forecast

Best window: 08:00 (AQI 20) · Peak AQI: 72 at 20:00

TimeAQITemp (°F)HumidityWind (mph)PM2.5PM10
00:0061174.914%7.65.113.5
01:0049172.412%4.15.714.6
02:0044167.713%4.96.115.1
03:0039163.215%4.86.214.9
04:0034162.017%5.26.114.4
05:0029160.916%5.26.013.9
06:0025158.021%3.95.913.2
07:0022162.322%1.96.112.7
08:0020168.813%1.97.021.1
09:0020176.212%2.78.735.6
10:0020180.112%1.98.633.2
11:0023186.89%5.08.328.3
12:0027192.48%7.57.923.7
13:0032195.39%9.17.318.7
14:0037196.38%11.66.614.3
15:0042195.39%13.55.912.9
16:0047194.010%12.65.913.7
17:0053192.07%13.46.616.8
18:0065188.68%13.47.422.8
19:0071183.48%12.78.430.7
20:0072169.714%11.88.630.2
21:0069162.315%14.74.99.1
22:0066155.120%13.83.33.8
23:0062146.725%13.22.73.4

Air quality is forecast to be good for most of the day. Great time for outdoor activities!

Planning outdoor activities in Las Vegas? The forecast indicates 08:00 (AQI 20) as the best time, with AQI dropping to 20 at 08:00. The most challenging window is 20:00 (AQI 72) when AQI reaches 72 at 20:00. For pet owners in Las Vegas, the forecast can help with planning walk times and durations. Air quality is forecast to be good for most of the day. Great time for outdoor activities! Animals can be sensitive to air quality, and adjusting routines based on forecasted conditions is a consideration some pet owners follow.

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Disclaimer: The information provided on this site is for informational purposes only and does not constitute professional advice. Air quality, safety, and environmental data are subject to change and may not reflect real-time conditions. Always verify with official local sources before making decisions that affect your health or safety.