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: 7:54 PM CDT  ·  Refresh
39°C
Feels like 41°
Clear
▲ 42°  /  ▼ 29°
Wind
4 mph NNE
Humidity
29%
Dew Point
17°
Pressure
28.51 inHg
Visibility
10 mi
UV Index
4.3
Cloud Cover
1%
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 682 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°
11%
6 PM
42°
23%
7 PM
41°
14%
8 PM
39°
14%
9 PM
38°
7%
10 PM
37°
3%
11 PM
36°
3%
12 AM
35°
3%
1 AM
34°
3%
2 AM
34°
3%
3 AM
33°
3%
4 AM
32°
3%
5 AM
32°
3%
6 AM
33°
3%
7 AM
36°
3%
8 AM
37°
3%
9 AM
39°
3%
10 AM
40°
3%
11 AM
41°
3%
12 PM
43°
3%
1 PM
43°
3%
2 PM
43°
3%
3 PM
44°
3%
4 PM
44°
3%
7-Day Forecast
Today
42° 29°
Clear.
Thu
45° 32°
Clear.
Fri
48° 33°
Clear.
Sat
48° 32°
Clear with a 58% chance of rain.
Sun
40° 31°
Drizzle, 51% chance.
Mon
43° 30°
Drizzle, 51% chance.
Tue
42° 30°
Clear with a 53% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 39° Clear 11% 4 mph NNE 29%
6 PM 42° Clear 23% 3 mph NE 30%
7 PM 41° Clear 14% 4 mph ENE 31%
8 PM 39° Clear 14% 4 mph E 34%
9 PM 38° Clear 7% 4 mph ESE 36%
10 PM 37° Clear 3% 3 mph SE 38%
11 PM 36° Clear 3% 3 mph SE 40%
12 AM 35° Clear 3% 2 mph SE 41%
1 AM 34° Clear 3% 2 mph SSE 42%
2 AM 34° Clear 3% 3 mph SE 44%
3 AM 33° Clear 3% 3 mph SE 45%
4 AM 32° Clear 3% 4 mph ESE 46%
5 AM 32° Clear 3% 3 mph ESE 44%
6 AM 33° Clear 3% 2 mph ESE 42%
7 AM 36° Clear 3% 3 mph ESE 39%
8 AM 37° Clear 3% 4 mph ESE 35%
9 AM 39° Clear 3% 4 mph ESE 32%
10 AM 40° Clear 3% 4 mph ESE 28%
11 AM 41° Clear 3% 4 mph ESE 26%
12 PM 43° Clear 3% 4 mph SE 24%
1 PM 43° Clear 3% 3 mph SE 22%
2 PM 43° Clear 3% 3 mph SE 22%
3 PM 44° Clear 3% 3 mph SE 21%
4 PM 44° Clear 3% 3 mph SE 20%
15-Day Forecast
Today
7/22
Clear
14%
29°
42°
Thu
7/23
Clear
3%
32°
45°
Fri
7/24
Clear
7%
33°
48°
Sat
7/25
Clear
58%
32°
48°
Sun
7/26
Drizzle
51%
31°
40°
Mon
7/27
Drizzle
51%
30°
43°
Tue
7/28
Clear
53%
30°
42°
Wed
7/29
Drizzle
44%
31°
43°
Thu
7/30
Rain
44%
31°
43°
Fri
7/31
Clear
50%
28°
41°
Sat
8/1
Drizzle
60%
29°
42°
Sun
8/2
Drizzle
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
Today 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, 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
SBCAPE820 J/kg
MLCAPE473 J/kg
MUCAPE820 J/kg
SBCIN0 J/kg
MLCIN-1 J/kg
Lifted Index-1.9
Kinematics
0–6 km Shear7 kt
0–1 km Shear2 kt
Eff. Shear6 kt
0–1 km SRH3
0–3 km SRH12
Eff. SRH12
Storm Motion64° @ 16 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.3
Thermo & Levels
PWAT1.85 in
0–3 km LR9.0 °C/km
700–500 LR5.8 °C/km
Total Totals47.4
LCL708 hPa
LFC965 hPa
EL173 hPa
Freezing Lvl16,486 ft