Extreme Heat Warning — Lake Havasu and Fort Mohave, AZ, Lake Mead - AZ side, AZ, Lake Mohave - AZ side, 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, 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 Excessive Heat Watch 10:00 PM

Las Vegas Valley, Clark County, Nevada, United States

Last updated: 5:31 AM CDT  ·  Refresh
31°C
Feels like 29°
Mostly Clear
▲ 41°  /  ▼ 29°
Wind
4 mph NNE
Humidity
32%
Dew Point
12°
Pressure
27.55 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
22%
Sunrise
5:39 AM
Sunset
7:53 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Las Vegas Valley is currently mostly clear at 31°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:39AM · Sunset: 7:53PM.

Alerts

Extreme Heat Warning
Lake Havasu and Fort Mohave, AZ, Lake Mead - AZ side, AZ, Lake Mohave - AZ side, 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, 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
Excessive Heat Watch
Expires 10:00 PM
49 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
3%
4 AM
30°
7%
5 AM
28°
7%
6 AM
28°
7%
7 AM
30°
7%
8 AM
32°
7%
9 AM
32°
3%
10 AM
33°
3%
11 AM
34°
3%
12 PM
36°
3%
1 PM
38°
3%
2 PM
39°
3%
3 PM
39°
3%
4 PM
39°
3%
5 PM
41°
3%
6 PM
40°
3%
7 PM
39°
3%
8 PM
38°
3%
9 PM
38°
3%
10 PM
37°
3%
11 PM
36°
3%
12 AM
34°
3%
1 AM
36°
3%
2 AM
35°
3%
7-Day Forecast
Today
41° 29°
Mostly Clear.
Thu
42° 30°
Clear.
Fri
43° 32°
Mostly Clear.
Sat
45° 32°
Clear.
Sun
44° 31°
Mostly Clear.
Mon
43° 31°
Mostly Clear.
Tue
40° 30°
Mostly Cloudy.
TimeTempConditionsPrecipWindHumidity
Now 31° Mostly Clear 3% 4 mph NNE 32%
4 AM 30° Mostly Clear 7% 4 mph NNW 30%
5 AM 28° Mostly Clear 7% 3 mph NNW 31%
6 AM 28° Clear 7% 2 mph WNW 30%
7 AM 30° Clear 7% 3 mph SSW 30%
8 AM 32° Clear 7% 3 mph SSE 28%
9 AM 32° Clear 3% 3 mph SSE 26%
10 AM 33° Clear 3% 4 mph SE 23%
11 AM 34° Clear 3% 4 mph SE 22%
12 PM 36° Clear 3% 5 mph SE 20%
1 PM 38° Clear 3% 5 mph SE 19%
2 PM 39° Clear 3% 5 mph SSE 17%
3 PM 39° Mostly Clear 3% 5 mph SSW 16%
4 PM 39° Partly Cloudy 3% 7 mph SW 16%
5 PM 41° Partly Cloudy 3% 8 mph SW 16%
6 PM 40° Partly Cloudy 3% 7 mph SW 16%
7 PM 39° Partly Cloudy 3% 8 mph SW 17%
8 PM 38° Partly Cloudy 3% 8 mph WSW 18%
9 PM 38° Partly Cloudy 3% 6 mph WSW 18%
10 PM 37° Partly Cloudy 3% 6 mph SW 19%
11 PM 36° Mostly Clear 3% 4 mph WSW 22%
12 AM 34° Mostly Clear 3% 4 mph WSW 23%
1 AM 36° Mostly Clear 3% 4 mph WSW 24%
2 AM 35° Mostly Clear 3% 4 mph WSW 24%
15-Day Forecast
Today
7/22
Mostly Clear
7%
29°
41°
Thu
7/23
Clear
3%
30°
42°
Fri
7/24
Mostly Clear
9%
32°
43°
Sat
7/25
Clear
3%
32°
45°
Sun
7/26
Mostly Clear
7%
31°
44°
Mon
7/27
Mostly Clear
7%
31°
43°
Tue
7/28
Mostly Cloudy
8%
30°
40°
Wed
7/29
Partly Cloudy
27%
30°
39°
Thu
7/30
Mostly Clear
20%
30°
42°
Fri
7/31
Clear
5%
31°
42°
Sat
8/1
Clear
8%
31°
42°
Sun
8/2
Clear
25%
31°
41°
Mon
8/3
Clear
25%
31°
40°
Tue
8/4
Clear
25%
30°
39°
Wed
8/5
Clear
25%
29°
39°
49
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
30 AQI 5.4 µg/m³
O3
Ground-level ozone
Dominant
49 AQI 54 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 49 Good 49 30
Thu 61 Moderate 61 31
Fri 45 Good 45 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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Wed Jul 22, 09:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE6 J/kg
MUCAPE0 J/kg
SBCIN-5007 J/kg
MLCIN0 J/kg
Lifted Index1.2
Kinematics
0–6 km Shear9 kt
0–1 km Shear10 kt
Eff. Shear—
0–1 km SRH-26
0–3 km SRH14
Eff. SRH—
Storm Motion159° @ 13 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)—
Supercell—
K-Index32.5
Thermo & Levels
PWAT1.38 in
0–3 km LR7.1 °C/km
700–500 LR7.1 °C/km
Total Totals47.2
LCL713 hPa
LFC—
EL—
Freezing Lvl14,055 ft