Fountain Hills/East Mesa, AZ

Last updated: 6:50 PM CDT  ·  Refresh
32°C
Feels like 39°
Mostly Clear
▲ 33°  /  ▼ 24°
Wind
3 mph SSE
Humidity
66%
Dew Point
25°
Pressure
30.02 inHg
Visibility
10 mi
UV Index
3.7
Cloud Cover
21%
Sunrise
6:13 AM
Sunset
8:07 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Fountain Hills/East Mesa is currently mostly clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3627 J/kg) — isolated convective development possible. Sunrise: 6:13AM · Sunset: 8:07PM.

Alerts

No active alerts for this location.
58 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
11%
7 PM
33°
23%
8 PM
31°
23%
9 PM
29°
23%
10 PM
28°
14%
11 PM
28°
14%
12 AM
27°
7%
1 AM
26°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
26°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
25°
8%
8 AM
27°
17%
9 AM
28°
17%
10 AM
29°
17%
11 AM
30°
18%
12 PM
31°
18%
1 PM
33°
18%
2 PM
33°
19%
3 PM
33°
19%
4 PM
33°
19%
5 PM
33°
19%
7-Day Forecast
Tonight
33° 24°
Mostly Clear with a 23% chance of rain.
Fri
34° 24°
Partly Cloudy with a 22% chance of rain.
Sat
34° 24°
Mostly Clear.
Sun
34° 23°
Mostly Clear.
Mon
36° 24°
Mostly Clear.
Tue
37° 24°
Mostly Clear with a 43% chance of rain.
Wed
37° 24°
Mostly Cloudy with a 30% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Clear 11% 3 mph SSE 65%
7 PM 33° Partly Cloudy 23% 4 mph SSW 72%
8 PM 31° Partly Cloudy 23% 4 mph SSW 76%
9 PM 29° Partly Cloudy 23% 4 mph SSW 80%
10 PM 28° Mostly Clear 14% 4 mph SW 83%
11 PM 28° Partly Cloudy 14% 4 mph SW 86%
12 AM 27° Partly Cloudy 7% 4 mph SW 88%
1 AM 26° Mostly Cloudy 3% 4 mph SW 90%
2 AM 26° Mostly Cloudy 3% 4 mph WSW 91%
3 AM 26° Mostly Cloudy 3% 3 mph WSW 93%
4 AM 26° Mostly Cloudy 3% 3 mph W 93%
5 AM 24° Mostly Cloudy 3% 2 mph WNW 93%
6 AM 24° Haze 3% 2 mph NW 94%
7 AM 25° Mostly Cloudy 8% 2 mph WNW 90%
8 AM 27° Mostly Cloudy 17% 3 mph WNW 84%
9 AM 28° Mostly Cloudy 17% 4 mph WNW 77%
10 AM 29° Mostly Cloudy 17% 5 mph WNW 71%
11 AM 30° Partly Cloudy 18% 5 mph WNW 64%
12 PM 31° Partly Cloudy 18% 4 mph WNW 59%
1 PM 33° Partly Cloudy 18% 4 mph WNW 55%
2 PM 33° Partly Cloudy 19% 5 mph WNW 53%
3 PM 33° Partly Cloudy 19% 5 mph WNW 51%
4 PM 33° Partly Cloudy 19% 5 mph WNW 54%
5 PM 33° Partly Cloudy 19% 5 mph WNW 58%
15-Day Forecast
Today
7/16
Mostly Clear
23%
24°
33°
Fri
7/17
Partly Cloudy
22%
24°
34°
Sat
7/18
Mostly Clear
16%
24°
34°
Sun
7/19
Mostly Clear
7%
23°
34°
Mon
7/20
Mostly Clear
16%
24°
36°
Tue
7/21
Mostly Clear
43%
24°
37°
Wed
7/22
Mostly Cloudy
30%
24°
37°
Thu
7/23
Thunderstorm
63%
24°
36°
Fri
7/24
Drizzle
69%
24°
35°
Sat
7/25
Drizzle
44%
24°
34°
Sun
7/26
Drizzle
51%
23°
33°
Mon
7/27
Drizzle
60%
23°
34°
Tue
7/28
Rain
90%
23°
34°
Wed
7/29
Drizzle
60%
23°
34°
Thu
7/30
Drizzle
60%
23°
35°
58
Moderate
U.S. Air Quality Index · Dominant: PM2.5
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
Dominant
58 AQI 12.9 µg/m³
O3
Ground-level ozone
21 AQI 24 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Fri 58 Moderate 21 58
Sat 54 Moderate 23 54
Sun 50 Good 27 50
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 Thu Jul 16, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE4257 J/kg
MLCAPE3023 J/kg
MUCAPE4257 J/kg
SBCIN-6 J/kg
MLCIN0 J/kg
Lifted Index-8.6
Kinematics
0–6 km Shear9 kt
0–1 km Shear3 kt
Eff. Shear11 kt
0–1 km SRH-1
0–3 km SRH-21
Eff. SRH-21
Storm Motion214° @ 20 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index28.3
Thermo & Levels
PWAT1.90 in
0–3 km LR7.2 °C/km
700–500 LR5.8 °C/km
Total Totals47.0
LCL919 hPa
LFC914 hPa
EL140 hPa
Freezing Lvl15,200 ft