Excessive Heat Warning — Western Pima County Including Ajo/Organ Pipe Cactus National Monument, AZ, Tohono O'odham Nation including Sells, AZ, Tucson Metro Area including Tucson/Green Valley/Marana/Vail, AZ, South Central Pinal County including Eloy/Picacho Peak State Park, AZ, Southeast Pinal County including Kearny/Mammoth/Oracle, AZ, Upper Gila River and Aravaipa Valleys including Clifton/Safford, AZ, Upper Santa Cruz River and Altar Valleys including Nogales, AZ, Upper San Pedro River Valley including Sierra Vista/Benson, AZ, Eastern Cochise County Below 5000 Feet including Douglas/Willcox, AZ 10:00 PM

Pinal County, Arizona, United States

Last updated: 4:12 PM CDT  ·  Refresh
37°C
Feels like 38°
Clear
▲ 40°  /  ▼ 29°
Wind
7 mph NNW
Humidity
30%
Dew Point
17°
Pressure
28.20 inHg
Visibility
10 mi
UV Index
9.2
Cloud Cover
2%
Sunrise
5:32 AM
Sunset
7:31 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Pinal County is currently clear at 37°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 692 J/kg) — isolated convective development possible. Sunrise: 5:32AM · Sunset: 7:31PM.

Alerts

Excessive Heat Warning
Western Pima County Including Ajo/Organ Pipe Cactus National Monument, AZ, Tohono O'odham Nation including Sells, AZ, Tucson Metro Area including Tucson/Green Valley/Marana/Vail, AZ, South Central Pinal County including Eloy/Picacho Peak State Park, AZ, Southeast Pinal County including Kearny/Mammoth/Oracle, AZ, Upper Gila River and Aravaipa Valleys including Clifton/Safford, AZ, Upper Santa Cruz River and Altar Valleys including Nogales, AZ, Upper San Pedro River Valley including Sierra Vista/Benson, AZ, Eastern Cochise County Below 5000 Feet including Douglas/Willcox, AZ
Expires 10:00 PM
54 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
37°
3%
3 PM
38°
3%
4 PM
38°
3%
5 PM
40°
3%
6 PM
39°
3%
7 PM
38°
3%
8 PM
37°
5%
9 PM
36°
5%
10 PM
34°
5%
11 PM
34°
5%
12 AM
33°
5%
1 AM
32°
5%
2 AM
32°
3%
3 AM
31°
3%
4 AM
31°
3%
5 AM
29°
3%
6 AM
29°
3%
7 AM
31°
3%
8 AM
32°
3%
9 AM
34°
3%
10 AM
35°
3%
11 AM
36°
3%
12 PM
37°
3%
1 PM
39°
3%
7-Day Forecast
Today
40° 29°
Clear.
Thu
42° 29°
Clear.
Fri
45° 29°
Clear.
Sat
44° 28°
Mostly Clear with a 52% chance of rain.
Sun
39° 28°
Drizzle, 60% chance.
Mon
39° 27°
Drizzle, 60% chance.
Tue
38° 27°
Clear with a 60% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 37° Clear 3% 7 mph NNW 30%
3 PM 38° Clear 3% 6 mph NW 29%
4 PM 38° Clear 3% 6 mph NW 28%
5 PM 40° Clear 3% 7 mph NW 28%
6 PM 39° Clear 3% 6 mph NW 30%
7 PM 38° Clear 3% 6 mph NW 31%
8 PM 37° Clear 5% 5 mph NNW 33%
9 PM 36° Clear 5% 4 mph N 35%
10 PM 34° Clear 5% 4 mph NNE 36%
11 PM 34° Mostly Clear 5% 4 mph NE 38%
12 AM 33° Mostly Clear 5% 4 mph E 40%
1 AM 32° Mostly Clear 5% 4 mph ESE 41%
2 AM 32° Mostly Clear 3% 5 mph ESE 43%
3 AM 31° Mostly Clear 3% 5 mph ESE 46%
4 AM 31° Mostly Clear 3% 5 mph SE 48%
5 AM 29° Mostly Clear 3% 4 mph SE 50%
6 AM 29° Mostly Clear 3% 4 mph SE 47%
7 AM 31° Clear 3% 3 mph SSE 43%
8 AM 32° Clear 3% 3 mph SSE 39%
9 AM 34° Clear 3% 2 mph SSE 36%
10 AM 35° Clear 3% 2 mph SSE 33%
11 AM 36° Clear 3% 2 mph WNW 30%
12 PM 37° Clear 3% 3 mph W 28%
1 PM 39° Clear 3% 4 mph WNW 26%
15-Day Forecast
Today
7/22
Clear
5%
29°
40°
Thu
7/23
Clear
3%
29°
42°
Fri
7/24
Clear
3%
29°
45°
Sat
7/25
Mostly Clear
52%
28°
44°
Sun
7/26
Drizzle
60%
28°
39°
Mon
7/27
Drizzle
60%
27°
39°
Tue
7/28
Clear
60%
27°
38°
Wed
7/29
Drizzle
60%
28°
39°
Thu
7/30
Clear
25%
28°
40°
Fri
7/31
Clear
42%
31°
40°
Sat
8/1
Drizzle
60%
27°
41°
Sun
8/2
Clear
60%
30°
40°
Mon
8/3
Drizzle
60%
30°
40°
Tue
8/4
Drizzle
60%
29°
39°
Wed
8/5
Clear
60%
29°
39°
54
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
31 AQI 5.6 µg/m³
O3
Ground-level ozone
Dominant
54 AQI 57 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 54 Moderate 54 31
Fri 58 Moderate 58 44
Sat 64 Moderate 64 48
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, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE886 J/kg
MLCAPE206 J/kg
MUCAPE886 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-2.1
Kinematics
0–6 km Shear7 kt
0–1 km Shear3 kt
Eff. Shear9 kt
0–1 km SRH-7
0–3 km SRH-30
Eff. SRH-30
Storm Motion63° @ 15 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)0.0
Supercell0.0
K-Index37.6
Thermo & Levels
PWAT1.77 in
0–3 km LR9.2 °C/km
700–500 LR5.5 °C/km
Total Totals46.1
LCL710 hPa
LFC955 hPa
EL168 hPa
Freezing Lvl15,486 ft