Excessive Heat Watch 10:00 PM

Phoenix, Arizona

Last updated: 5:01 PM CDT  ·  Refresh
42°C
Feels like 39°
Clear
▲ 44°  /  ▼ 27°
Wind
8 mph W
Humidity
13%
Dew Point
9°
Pressure
28.58 inHg
Visibility
10 mi
UV Index
8.7
Cloud Cover
9%
Sunrise
5:19 AM
Sunset
7:42 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Phoenix is currently clear at 42°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:19AM · Sunset: 7:42PM.

Alerts

Excessive Heat Watch
Expires 10:00 PM
50 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
42°
3%
4 PM
42°
3%
5 PM
44°
3%
6 PM
44°
3%
7 PM
43°
3%
8 PM
41°
3%
9 PM
40°
3%
10 PM
39°
3%
11 PM
38°
3%
12 AM
37°
5%
1 AM
34°
5%
2 AM
33°
5%
3 AM
32°
9%
4 AM
31°
9%
5 AM
30°
9%
6 AM
30°
9%
7 AM
31°
9%
8 AM
31°
5%
9 AM
31°
5%
10 AM
36°
5%
11 AM
37°
5%
12 PM
38°
5%
1 PM
38°
5%
2 PM
42°
6%
7-Day Forecast
Today
44° 27°
Partly Cloudy.
Wed
43° 29°
Partly Cloudy.
Thu
44° 29°
Mostly Clear.
Fri
42° 27°
Partly Cloudy.
Sat
41° 22°
Clear.
Sun
38° 21°
Clear.
Mon
40° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 42° Clear 3% 8 mph W 13%
4 PM 42° Mostly Clear 3% 9 mph W 12%
5 PM 44° Mostly Clear 3% 9 mph W 12%
6 PM 44° Mostly Cloudy 3% 10 mph W 13%
7 PM 43° Mostly Cloudy 3% 9 mph W 13%
8 PM 41° Mostly Cloudy 3% 8 mph W 14%
9 PM 40° Mostly Cloudy 3% 8 mph W 15%
10 PM 39° Mostly Cloudy 3% 7 mph W 16%
11 PM 38° Mostly Cloudy 3% 6 mph WNW 17%
12 AM 37° Mostly Cloudy 5% 5 mph WNW 18%
1 AM 34° Mostly Cloudy 5% 7 mph SW 20%
2 AM 33° Mostly Clear 5% 7 mph WSW 22%
3 AM 32° Partly Cloudy 9% 6 mph WSW 25%
4 AM 31° Partly Cloudy 9% 5 mph SSW 27%
5 AM 30° Partly Cloudy 9% 4 mph SSE 28%
6 AM 30° Mostly Clear 9% 3 mph ESE 28%
7 AM 31° Mostly Clear 9% 4 mph SE 27%
8 AM 31° Partly Cloudy 5% 4 mph SSE 25%
9 AM 31° Partly Cloudy 5% 4 mph SSW 23%
10 AM 36° Partly Cloudy 5% 5 mph WSW 21%
11 AM 37° Partly Cloudy 5% 6 mph WSW 20%
12 PM 38° Partly Cloudy 5% 6 mph W 18%
1 PM 38° Partly Cloudy 5% 7 mph W 17%
2 PM 42° Mostly Clear 6% 9 mph W 16%
15-Day Forecast
Today
6/23
Partly Cloudy
3%
27°
44°
Wed
6/24
Partly Cloudy
9%
29°
43°
Thu
6/25
Mostly Clear
8%
29°
44°
Fri
6/26
Partly Cloudy
7%
27°
42°
Sat
6/27
Clear
7%
22°
41°
Sun
6/28
Clear
7%
21°
38°
Mon
6/29
Clear
6%
21°
40°
Tue
6/30
Clear
32%
21°
40°
Wed
7/1
Clear
14%
21°
41°
Thu
7/2
Clear
19%
22°
40°
Fri
7/3
Clear
28%
21°
39°
Sat
7/4
Clear
32%
21°
43°
Sun
7/5
Clear
60%
21°
44°
Mon
7/6
Clear
60%
21°
43°
Tue
7/7
Drizzle
60%
21°
43°
50
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
50 AQI 54 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 50 Good 50 30
Thu 45 Good 45 38
Fri 50 Good 50 35
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 Tue Jun 23, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE259 J/kg
MLCAPE41 J/kg
MUCAPE259 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-0.4
Kinematics
0–6 km Shear12 kt
0–1 km Shear1 kt
Eff. Shear11 kt
0–1 km SRH-1
0–3 km SRH24
Eff. SRH24
Storm Motion149° @ 14 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)0.0
Supercell0.0
K-Index27.6
Thermo & Levels
PWAT1.22 in
0–3 km LR9.1 °C/km
700–500 LR8.2 °C/km
Total Totals48.7
LCL603 hPa
LFC968 hPa
EL312 hPa
Freezing Lvl15,325 ft