Excessive Heat Watch 10:00 PM Excessive Heat Warning — Imperial County Southwest, CA, Salton Sea, CA, Chuckwalla Mountains, CA, Imperial County Southeast, CA, Imperial County West, CA, Imperial Valley, CA, Chiriaco Summit, CA, Palo Verde Valley, CA, Chuckwalla Valley, CA, Joshua Tree NP West, CA, Joshua Tree NP East, CA, Aguila Valley, AZ, Tonopah Desert, AZ, Gila Bend, AZ, Cave Creek/New River, AZ, New River Mesa, AZ, Rio Verde/Salt River, AZ, Fountain Hills/East Mesa, AZ, Superior, AZ, Northwest Pinal County, AZ, West Pinal County, AZ, Apache Junction/Gold Canyon, AZ, Sonoran Desert Natl Monument, AZ, Northwest Valley, AZ, Buckeye/Avondale, AZ, Deer Valley, AZ, Central Phoenix, AZ, North Phoenix/Glendale, AZ, Scottsdale/Paradise Valley, AZ, East Valley, AZ, South Mountain/Ahwatukee, AZ, Southeast Valley/Queen Creek, AZ 10:00 PM

Phoenix, Arizona

Last updated: 7:57 PM CDT  ·  Refresh
38°C
Feels like 40°
Clear
▲ 41°  /  ▼ 24°
Wind
5 mph NE
Humidity
30%
Dew Point
17°
Pressure
28.23 inHg
Visibility
10 mi
UV Index
4.3
Cloud Cover
3%
Sunrise
5:32 AM
Sunset
7:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Phoenix is currently clear at 38°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 734 J/kg) — isolated convective development possible. Sunrise: 5:32AM · Sunset: 7:35PM.

Alerts

Excessive Heat Watch
Expires 10:00 PM
Excessive Heat Warning
Imperial County Southwest, CA, Salton Sea, CA, Chuckwalla Mountains, CA, Imperial County Southeast, CA, Imperial County West, CA, Imperial Valley, CA, Chiriaco Summit, CA, Palo Verde Valley, CA, Chuckwalla Valley, CA, Joshua Tree NP West, CA, Joshua Tree NP East, CA, Aguila Valley, AZ, Tonopah Desert, AZ, Gila Bend, AZ, Cave Creek/New River, AZ, New River Mesa, AZ, Rio Verde/Salt River, AZ, Fountain Hills/East Mesa, AZ, Superior, AZ, Northwest Pinal County, AZ, West Pinal County, AZ, Apache Junction/Gold Canyon, AZ, Sonoran Desert Natl Monument, AZ, Northwest Valley, AZ, Buckeye/Avondale, AZ, Deer Valley, AZ, Central Phoenix, AZ, North Phoenix/Glendale, AZ, Scottsdale/Paradise Valley, AZ, East Valley, AZ, South Mountain/Ahwatukee, AZ, Southeast Valley/Queen Creek, AZ
Expires 10:00 PM
87 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
38°
13%
6 PM
41°
13%
7 PM
39°
4%
8 PM
36°
3%
9 PM
35°
3%
10 PM
35°
3%
11 PM
34°
3%
12 AM
33°
3%
1 AM
32°
3%
2 AM
32°
11%
3 AM
32°
11%
4 AM
31°
11%
5 AM
31°
11%
6 AM
33°
11%
7 AM
34°
12%
8 AM
36°
3%
9 AM
37°
3%
10 AM
38°
3%
11 AM
39°
3%
12 PM
42°
3%
1 PM
42°
3%
2 PM
42°
3%
3 PM
43°
3%
4 PM
43°
3%
7-Day Forecast
Today
41° 24°
Clear.
Thu
43° 31°
Clear.
Fri
47° 33°
Clear.
Sat
47° 32°
Mostly Clear with a 26% chance of rain.
Sun
40° 31°
Drizzle, 51% chance.
Mon
41° 29°
Rain, 82% chance.
Tue
40° 30°
Drizzle, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 38° Clear 13% 5 mph NE 30%
6 PM 41° Clear 13% 7 mph NE 31%
7 PM 39° Clear 4% 7 mph NE 33%
8 PM 36° Clear 3% 6 mph ENE 33%
9 PM 35° Clear 3% 5 mph ENE 34%
10 PM 35° Clear 3% 5 mph ENE 35%
11 PM 34° Clear 3% 4 mph ENE 37%
12 AM 33° Clear 3% 4 mph ENE 39%
1 AM 32° Clear 3% 4 mph ENE 40%
2 AM 32° Clear 11% 4 mph ENE 42%
3 AM 32° Clear 11% 4 mph ENE 43%
4 AM 31° Clear 11% 4 mph ENE 45%
5 AM 31° Clear 11% 4 mph ENE 43%
6 AM 33° Clear 11% 4 mph ENE 41%
7 AM 34° Clear 12% 4 mph E 37%
8 AM 36° Clear 3% 4 mph ESE 34%
9 AM 37° Clear 3% 4 mph ESE 31%
10 AM 38° Clear 3% 4 mph ESE 28%
11 AM 39° Clear 3% 4 mph SE 26%
12 PM 42° Clear 3% 3 mph SSE 24%
1 PM 42° Clear 3% 4 mph SSE 23%
2 PM 42° Clear 3% 4 mph SSE 22%
3 PM 43° Clear 3% 4 mph SSE 21%
4 PM 43° Clear 3% 4 mph SSE 20%
15-Day Forecast
Today
7/22
Clear
13%
24°
41°
Thu
7/23
Clear
11%
31°
43°
Fri
7/24
Clear
3%
33°
47°
Sat
7/25
Mostly Clear
26%
32°
47°
Sun
7/26
Drizzle
51%
31°
40°
Mon
7/27
Rain
82%
29°
41°
Tue
7/28
Drizzle
71%
30°
40°
Wed
7/29
Rain
63%
29°
41°
Thu
7/30
Rain
68%
26°
42°
Fri
7/31
Drizzle
50%
27°
42°
Sat
8/1
Drizzle
60%
28°
42°
Sun
8/2
Clear
25%
32°
42°
Mon
8/3
Drizzle
60%
32°
42°
Tue
8/4
Drizzle
60%
32°
42°
Wed
8/5
Drizzle
60%
32°
41°
87
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
27 AQI 4.9 µg/m³
O3
Ground-level ozone
Dominant
87 AQI 67 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 87 Moderate 87 27
Fri 77 Moderate 77 33
Sat 104 Unhealthy for Sensitive Groups 104 41
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, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE967 J/kg
MLCAPE562 J/kg
MUCAPE967 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-1.8
Kinematics
0–6 km Shear4 kt
0–1 km Shear2 kt
Eff. Shear2 kt
0–1 km SRH-8
0–3 km SRH31
Eff. SRH31
Storm Motion91° @ 18 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado-0.0
STP (eff)0.0
Supercell0.0
K-Index39.5
Thermo & Levels
PWAT1.84 in
0–3 km LR9.2 °C/km
700–500 LR5.7 °C/km
Total Totals47.1
LCL703 hPa
LFC956 hPa
EL168 hPa
Freezing Lvl16,253 ft