Severe Thunderstorm Warning — Maricopa County, AZ 12:15 AM Severe Thunderstorm Warning — Maricopa County, AZ 12:15 AM Severe Thunderstorm Warning — Maricopa County, AZ 12:45 AM Flash Flood Warning — Maricopa County, AZ 2:15 AM Flash Flood Warning — Maricopa County, AZ 3:15 AM Flood Watch 7:00 AM

Maricopa County, Arizona, United States

Last updated: 12:00 AM CDT  ·  Refresh
31°C
Feels like 34°
Partly Cloudy
▲ 40°  /  ▼ 27°
Wind
14 mph S
Humidity
57%
Dew Point
19°
Pressure
28.80 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
35%
Sunrise
6:02 AM
Sunset
6:57 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Maricopa County is currently partly cloudy at 31°C. Precipitation is likely — peak probability 74% around 11 PM. Atmospheric instability is elevated (CAPE up to 1903 J/kg) — isolated convective development possible. Sunrise: 6:02AM · Sunset: 6:57PM.

42 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
47%
10 PM
30°
59%
11 PM
31°
74%
12 AM
31°
46%
1 AM
31°
55%
2 AM
31°
46%
3 AM
31°
34%
4 AM
28°
35%
5 AM
28°
36%
6 AM
29°
26%
7 AM
31°
29%
8 AM
32°
28%
9 AM
33°
32%
10 AM
34°
27%
11 AM
34°
40%
12 PM
36°
41%
1 PM
37°
41%
2 PM
37°
44%
3 PM
37°
39%
4 PM
40°
39%
5 PM
39°
48%
6 PM
38°
49%
7 PM
38°
46%
8 PM
33°
44%
7-Day Forecast
Tonight
40° 27°
Partly Cloudy with a 54% chance of rain.
Mon
40° 28°
Mostly Clear with a 51% chance of rain.
Tue
42° 27°
Clear with a 34% chance of rain.
Wed
41° 28°
Mostly Clear with a 28% chance of rain.
Thu
40° 28°
Partly Cloudy with a 30% chance of rain.
Fri
37° 27°
Rain, 64% chance.
Sat
34° 27°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 31° Partly Cloudy 47% 14 mph S 57%
10 PM 30° Partly Cloudy 59% 18 mph SSE 60%
11 PM 31° Partly Cloudy 74% 12 mph SE 57%
12 AM 31° Partly Cloudy 46% 10 mph SE 62%
1 AM 31° Partly Cloudy 55% 10 mph SE 64%
2 AM 31° Partly Cloudy 46% 8 mph SE 64%
3 AM 31° Partly Cloudy 34% 5 mph SE 64%
4 AM 28° Rain 35% 4 mph SE 65%
5 AM 28° Mostly Clear 36% 5 mph ESE 63%
6 AM 29° Clear 26% 6 mph E 61%
7 AM 31° Clear 29% 7 mph ESE 58%
8 AM 32° Clear 28% 8 mph ESE 52%
9 AM 33° Clear 32% 11 mph ESE 49%
10 AM 34° Clear 27% 11 mph ESE 45%
11 AM 34° Mostly Clear 40% 10 mph ESE 44%
12 PM 36° Mostly Clear 41% 9 mph ESE 44%
1 PM 37° Mostly Clear 41% 11 mph SE 43%
2 PM 37° Mostly Clear 44% 10 mph SE 42%
3 PM 37° Mostly Clear 39% 9 mph SE 42%
4 PM 40° Mostly Clear 39% 9 mph SE 42%
5 PM 39° Mostly Clear 48% 8 mph ESE 44%
6 PM 38° Mostly Clear 49% 7 mph ESE 46%
7 PM 38° Mostly Clear 46% 7 mph ESE 48%
8 PM 33° Mostly Clear 44% 8 mph ESE 52%
15-Day Forecast
Today
8/30
Partly Cloudy
54%
27°
40°
Mon
8/31
Mostly Clear
51%
28°
40°
Tue
9/1
Clear
34%
27°
42°
Wed
9/2
Mostly Clear
28%
28°
41°
Thu
9/3
Partly Cloudy
30%
28°
40°
Fri
9/4
Rain
64%
27°
37°
Sat
9/5
Rain
63%
27°
34°
Sun
9/6
Partly Cloudy
43%
27°
39°
Mon
9/7
Partly Cloudy
39%
28°
39°
Tue
9/8
Partly Cloudy
27%
30°
42°
Wed
9/9
Clear
60%
30°
39°
Thu
9/10
Clear
60%
29°
39°
Fri
9/11
Clear
60%
28°
38°
Sat
9/12
Clear
60%
28°
38°
Sun
9/13
Drizzle
60%
28°
37°
42
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
42 AQI 7.5 µg/m³
O3
Ground-level ozone
41 AQI 45 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 42 Good 41 42
Tue 41 Good 41 36
Wed 44 Good 44 34
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 Mon Aug 31, 03:00'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
SBCAPE767 J/kg
MLCAPE1153 J/kg
MUCAPE1583 J/kg
SBCIN-299 J/kg
MLCIN-199 J/kg
Lifted Index-3.7
Kinematics
0–6 km Shear11 kt
0–1 km Shear14 kt
Eff. Shear10 kt
0–1 km SRH119
0–3 km SRH105
Eff. SRH42
Storm Motion314° @ 14 kt
0–1 km EHI0.6
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index44.9
Thermo & Levels
PWAT2.18 in
0–3 km LR7.0 °C/km
700–500 LR6.6 °C/km
Total Totals53.0
LCL813 hPa
LFC679 hPa
EL216 hPa
Freezing Lvl14,314 ft