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

Maricopa, Arizona

Last updated: 6:03 PM CDT  ·  Refresh
39°C
Feels like 40°
Clear
▲ 44°  /  ▼ 29°
Wind
4 mph N
Humidity
27%
Dew Point
16°
Pressure
28.55 inHg
Visibility
10 mi
UV Index
7.4
Cloud Cover
6%
Sunrise
5:34 AM
Sunset
7:34 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Maricopa is currently clear at 39°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 617 J/kg) — isolated convective development possible. Sunrise: 5:34AM · Sunset: 7:34PM.

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
100 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
39°
7%
5 PM
44°
15%
6 PM
43°
15%
7 PM
42°
15%
8 PM
41°
15%
9 PM
38°
15%
10 PM
37°
7%
11 PM
36°
3%
12 AM
35°
3%
1 AM
34°
3%
2 AM
33°
3%
3 AM
33°
3%
4 AM
32°
3%
5 AM
31°
3%
6 AM
31°
3%
7 AM
33°
3%
8 AM
34°
3%
9 AM
36°
3%
10 AM
38°
3%
11 AM
39°
3%
12 PM
40°
3%
1 PM
41°
3%
2 PM
41°
3%
3 PM
44°
3%
7-Day Forecast
Today
44° 29°
Clear.
Thu
45° 31°
Clear.
Fri
48° 32°
Clear.
Sat
48° 31°
Clear with a 37% chance of rain.
Sun
41° 31°
Drizzle, 64% chance.
Mon
41° 29°
Drizzle, 60% chance.
Tue
41° 28°
Overcast with a 60% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 39° Clear 7% 4 mph N 27%
5 PM 44° Clear 15% 4 mph N 26%
6 PM 43° Clear 15% 3 mph NNE 27%
7 PM 42° Clear 15% 3 mph NNE 27%
8 PM 41° Clear 15% 3 mph ENE 29%
9 PM 38° Clear 15% 4 mph SE 32%
10 PM 37° Clear 7% 3 mph SE 34%
11 PM 36° Clear 3% 4 mph SE 37%
12 AM 35° Clear 3% 3 mph SE 38%
1 AM 34° Clear 3% 2 mph SSE 40%
2 AM 33° Clear 3% 2 mph S 41%
3 AM 33° Clear 3% 3 mph SE 42%
4 AM 32° Clear 3% 3 mph ESE 43%
5 AM 31° Clear 3% 4 mph ESE 44%
6 AM 31° Clear 3% 4 mph ESE 42%
7 AM 33° Clear 3% 2 mph ESE 40%
8 AM 34° Clear 3% 3 mph ESE 37%
9 AM 36° Clear 3% 3 mph ESE 33%
10 AM 38° Clear 3% 3 mph E 30%
11 AM 39° Clear 3% 3 mph ENE 27%
12 PM 40° Clear 3% 3 mph E 26%
1 PM 41° Clear 3% 2 mph E 24%
2 PM 41° Clear 3% 2 mph ESE 23%
3 PM 44° Clear 3% 2 mph E 22%
15-Day Forecast
Today
7/22
Clear
15%
29°
44°
Thu
7/23
Clear
3%
31°
45°
Fri
7/24
Clear
7%
32°
48°
Sat
7/25
Clear
37%
31°
48°
Sun
7/26
Drizzle
64%
31°
41°
Mon
7/27
Drizzle
60%
29°
41°
Tue
7/28
Overcast
60%
28°
41°
Wed
7/29
Partly Cloudy
47%
29°
43°
Thu
7/30
Mostly Cloudy
50%
31°
42°
Fri
7/31
Partly Cloudy
36%
31°
43°
Sat
8/1
Drizzle
60%
31°
43°
Sun
8/2
Clear
60%
31°
42°
Mon
8/3
Drizzle
60%
31°
42°
Tue
8/4
Drizzle
60%
30°
41°
Wed
8/5
Drizzle
60%
30°
41°
100
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
36 AQI 6.4 µg/m³
O3
Ground-level ozone
Dominant
100 AQI 70 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 100 Moderate 100 36
Fri 50 Good 50 44
Sat 48 Good 48 37
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, 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
SBCAPE514 J/kg
MLCAPE69 J/kg
MUCAPE514 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-1.2
Kinematics
0–6 km Shear5 kt
0–1 km Shear1 kt
Eff. Shear5 kt
0–1 km SRH1
0–3 km SRH7
Eff. SRH7
Storm Motion48° @ 17 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.8
Thermo & Levels
PWAT1.67 in
0–3 km LR9.2 °C/km
700–500 LR5.7 °C/km
Total Totals45.5
LCL696 hPa
LFC967 hPa
EL198 hPa
Freezing Lvl16,266 ft