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: 2:41 AM CDT  ·  Refresh
32°C
Feels like 31°
Mostly Clear
▲ 41°  /  ▼ 30°
Wind
5 mph NNE
Humidity
32%
Dew Point
13°
Pressure
27.54 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
24%
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 32°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
32°
5%
1 AM
32°
3%
2 AM
31°
3%
3 AM
31°
3%
4 AM
28°
3%
5 AM
28°
3%
6 AM
29°
3%
7 AM
30°
3%
8 AM
31°
3%
9 AM
32°
3%
10 AM
34°
3%
11 AM
35°
3%
12 PM
37°
3%
1 PM
38°
3%
2 PM
39°
3%
3 PM
39°
3%
4 PM
41°
3%
5 PM
41°
3%
6 PM
40°
3%
7 PM
39°
3%
8 PM
38°
3%
9 PM
37°
3%
10 PM
37°
3%
11 PM
36°
3%
7-Day Forecast
Today
41° 30°
Clear.
Thu
42° 30°
Clear.
Fri
44° 32°
Clear.
Sat
45° 32°
Clear.
Sun
43° 31°
Clear.
Mon
43° 31°
Clear.
Tue
41° 30°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Clear 5% 5 mph NNE 32%
1 AM 32° Partly Cloudy 3% 6 mph NNE 31%
2 AM 31° Mostly Clear 3% 5 mph NNE 32%
3 AM 31° Mostly Clear 3% 5 mph N 32%
4 AM 28° Mostly Clear 3% 5 mph NNW 33%
5 AM 28° Clear 3% 4 mph NW 34%
6 AM 29° Clear 3% 2 mph WNW 34%
7 AM 30° Clear 3% 3 mph SSE 33%
8 AM 31° Clear 3% 4 mph SE 30%
9 AM 32° Clear 3% 4 mph SE 27%
10 AM 34° Clear 3% 4 mph SE 24%
11 AM 35° Clear 3% 4 mph SE 22%
12 PM 37° Clear 3% 5 mph SE 20%
1 PM 38° Clear 3% 5 mph SE 18%
2 PM 39° Clear 3% 4 mph SSE 17%
3 PM 39° Mostly Clear 3% 5 mph S 17%
4 PM 41° Mostly Clear 3% 7 mph SSW 16%
5 PM 41° Mostly Clear 3% 7 mph SSW 16%
6 PM 40° Mostly Clear 3% 8 mph SSW 17%
7 PM 39° Mostly Clear 3% 8 mph SW 18%
8 PM 38° Mostly Clear 3% 7 mph SW 19%
9 PM 37° Mostly Clear 3% 6 mph SW 19%
10 PM 37° Mostly Clear 3% 6 mph SW 20%
11 PM 36° Mostly Clear 3% 6 mph SW 21%
15-Day Forecast
Today
7/22
Clear
5%
30°
41°
Thu
7/23
Clear
3%
30°
42°
Fri
7/24
Clear
14%
32°
44°
Sat
7/25
Clear
3%
32°
45°
Sun
7/26
Clear
8%
31°
43°
Mon
7/27
Clear
8%
31°
43°
Tue
7/28
Clear
8%
30°
41°
Wed
7/29
Clear
18%
30°
41°
Thu
7/30
Clear
19%
30°
43°
Fri
7/31
Clear
19%
31°
41°
Sat
8/1
Clear
3%
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 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Wed Jul 22, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE6 J/kg
MLCAPE10 J/kg
MUCAPE21 J/kg
SBCIN-441 J/kg
MLCIN0 J/kg
Lifted Index-0.4
Kinematics
0–6 km Shear9 kt
0–1 km Shear12 kt
Eff. Shear—
0–1 km SRH-28
0–3 km SRH8
Eff. SRH—
Storm Motion130° @ 12 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)—
Supercell—
K-Index33.7
Thermo & Levels
PWAT1.44 in
0–3 km LR7.6 °C/km
700–500 LR7.1 °C/km
Total Totals47.9
LCL707 hPa
LFC531 hPa
EL475 hPa
Freezing Lvl14,380 ft