Excessive Heat Warning — Northwest Plateau, AZ, Lake Havasu and Fort Mohave, AZ, Lake Mead - AZ side, AZ, Lake Mohave - AZ side, AZ, Hualapai Mountains, AZ, Northwest Deserts, AZ, Death Valley National Park, CA, Western Mojave Desert, CA, Eastern Mojave Desert, Including the Mojave National Preserve, CA, Morongo Basin, CA, Cadiz Basin, CA, San Bernardino County-Upper Colorado River Valley, CA, Owens Valley South, CA, Owens Valley North, CA, Esmeralda and Central Nye County, NV, Lincoln County, NV, Northeast Clark County, NV, Western Clark and Southern Nye County, NV, Las Vegas Valley, NV, Southern Clark County, NV, Lake Mead - NV side, NV, Lake Mohave - NV side, NV 10:00 PM

Las Vegas, Nevada

Last updated: 5:22 PM CDT  ·  Refresh
42°C
Feels like 40°
Mostly Clear
▲ 42°  /  ▼ 28°
Wind
9 mph S
Humidity
14%
Dew Point
9°
Pressure
27.74 inHg
Visibility
10 mi
UV Index
8.3
Cloud Cover
12%
Sunrise
5:44 AM
Sunset
7:48 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Las Vegas is currently mostly clear at 42°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:44AM · Sunset: 7:48PM.

Alerts

Excessive Heat Warning
Northwest Plateau, AZ, Lake Havasu and Fort Mohave, AZ, Lake Mead - AZ side, AZ, Lake Mohave - AZ side, AZ, Hualapai Mountains, AZ, Northwest Deserts, AZ, Death Valley National Park, CA, Western Mojave Desert, CA, Eastern Mojave Desert, Including the Mojave National Preserve, CA, Morongo Basin, CA, Cadiz Basin, CA, San Bernardino County-Upper Colorado River Valley, CA, Owens Valley South, CA, Owens Valley North, CA, Esmeralda and Central Nye County, NV, Lincoln County, NV, Northeast Clark County, NV, Western Clark and Southern Nye County, NV, Las Vegas Valley, NV, Southern Clark County, NV, Lake Mead - NV side, NV, Lake Mohave - NV side, NV
Expires 10:00 PM
74 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
42°
3%
4 PM
40°
3%
5 PM
42°
3%
6 PM
42°
3%
7 PM
41°
3%
8 PM
38°
3%
9 PM
37°
3%
10 PM
36°
3%
11 PM
34°
3%
12 AM
33°
3%
1 AM
33°
3%
2 AM
32°
3%
3 AM
31°
3%
4 AM
31°
3%
5 AM
28°
3%
6 AM
29°
3%
7 AM
30°
3%
8 AM
32°
3%
9 AM
32°
3%
10 AM
35°
3%
11 AM
36°
3%
12 PM
37°
3%
1 PM
38°
3%
2 PM
38°
3%
7-Day Forecast
Today
42° 28°
Clear.
Thu
42° 28°
Clear.
Fri
43° 29°
Clear.
Sat
46° 29°
Clear.
Sun
46° 32°
Clear.
Mon
45° 32°
Clear.
Tue
44° 31°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 42° Mostly Clear 3% 9 mph S 14%
4 PM 40° Mostly Clear 3% 8 mph SW 12%
5 PM 42° Clear 3% 8 mph SSW 12%
6 PM 42° Clear 3% 10 mph SW 12%
7 PM 41° Clear 3% 9 mph SW 13%
8 PM 38° Clear 3% 8 mph WSW 14%
9 PM 37° Clear 3% 6 mph WSW 17%
10 PM 36° Clear 3% 6 mph WSW 19%
11 PM 34° Clear 3% 6 mph WSW 20%
12 AM 33° Clear 3% 6 mph WSW 21%
1 AM 33° Clear 3% 6 mph WSW 20%
2 AM 32° Clear 3% 4 mph W 19%
3 AM 31° Clear 3% 4 mph W 18%
4 AM 31° Clear 3% 3 mph WNW 18%
5 AM 28° Clear 3% 3 mph NW 18%
6 AM 29° Clear 3% 2 mph NNW 18%
7 AM 30° Clear 3% 2 mph E 19%
8 AM 32° Clear 3% 3 mph E 18%
9 AM 32° Clear 3% 3 mph ESE 16%
10 AM 35° Clear 3% 3 mph SE 14%
11 AM 36° Clear 3% 4 mph SE 13%
12 PM 37° Clear 3% 4 mph SE 12%
1 PM 38° Clear 3% 4 mph SE 10%
2 PM 38° Clear 3% 4 mph SSE 10%
15-Day Forecast
Today
7/29
Clear
3%
28°
42°
Thu
7/30
Clear
3%
28°
42°
Fri
7/31
Clear
3%
29°
43°
Sat
8/1
Clear
3%
29°
46°
Sun
8/2
Clear
3%
32°
46°
Mon
8/3
Clear
3%
32°
45°
Tue
8/4
Clear
3%
31°
44°
Wed
8/5
Mostly Clear
18%
30°
44°
Thu
8/6
Partly Cloudy
9%
29°
41°
Fri
8/7
Mostly Cloudy
34%
29°
40°
Sat
8/8
Drizzle
60%
28°
38°
Sun
8/9
Clear
25%
29°
38°
Mon
8/10
Clear
25%
29°
38°
Tue
8/11
Clear
25%
28°
37°
Wed
8/12
Clear
25%
28°
37°
74
Moderate
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
26 AQI 4.8 µg/m³
O3
Ground-level ozone
Dominant
74 AQI 63 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 74 Moderate 74 26
Fri 77 Moderate 77 23
Sat 77 Moderate 77 26
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Wed Jul 29, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE230 J/kg
MLCAPE44 J/kg
MUCAPE230 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index0.1
Kinematics
0–6 km Shear19 kt
0–1 km Shear5 kt
Eff. Shear13 kt
0–1 km SRH9
0–3 km SRH-7
Eff. SRH-7
Storm Motion193° @ 23 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.3
Thermo & Levels
PWAT1.01 in
0–3 km LR10.3 °C/km
700–500 LR7.1 °C/km
Total Totals48.2
LCL584 hPa
LFC939 hPa
EL319 hPa
Freezing Lvl15,052 ft