Fountain Valley, California

Last updated: 6:12 AM CDT  ·  Refresh
22°C
Feels like 25°
Partly Cloudy
▲ 30°  /  ▼ 20°
Wind
2 mph SSE
Humidity
82%
Dew Point
20°
Pressure
29.86 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
55%
Sunrise
6:20 AM
Sunset
7:26 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Fountain Valley is currently partly cloudy at 22°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:20AM · Sunset: 7:26PM.

Alerts

No active alerts for this location.
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
7%
5 AM
20°
3%
6 AM
20°
4%
7 AM
21°
3%
8 AM
22°
3%
9 AM
23°
3%
10 AM
24°
3%
11 AM
26°
3%
12 PM
26°
3%
1 PM
29°
3%
2 PM
29°
3%
3 PM
29°
3%
4 PM
29°
7%
5 PM
30°
6%
6 PM
29°
6%
7 PM
28°
6%
8 PM
27°
6%
9 PM
25°
6%
10 PM
24°
6%
11 PM
22°
6%
12 AM
22°
7%
1 AM
22°
7%
2 AM
22°
3%
3 AM
22°
3%
7-Day Forecast
Today
30° 20°
Partly Cloudy.
Wed
31° 20°
Partly Cloudy.
Thu
30° 18°
Partly Cloudy.
Fri
32° 19°
Partly Cloudy.
Sat
32° 20°
Mostly Clear.
Sun
29° 20°
Clear.
Mon
28° 18°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 22° Partly Cloudy 7% 2 mph SSE 82%
5 AM 20° Overcast 3% 2 mph SE 81%
6 AM 20° Mostly Cloudy 4% 2 mph S 81%
7 AM 21° Mostly Cloudy 3% 3 mph S 80%
8 AM 22° Partly Cloudy 3% 3 mph S 78%
9 AM 23° Partly Cloudy 3% 4 mph SSW 73%
10 AM 24° Mostly Clear 3% 4 mph SW 67%
11 AM 26° Mostly Clear 3% 6 mph SW 61%
12 PM 26° Partly Cloudy 3% 7 mph SW 57%
1 PM 29° Partly Cloudy 3% 8 mph SW 55%
2 PM 29° Partly Cloudy 3% 8 mph WSW 53%
3 PM 29° Partly Cloudy 3% 8 mph WSW 54%
4 PM 29° Mostly Clear 7% 8 mph WSW 56%
5 PM 30° Mostly Clear 6% 8 mph WSW 58%
6 PM 29° Mostly Clear 6% 7 mph SW 62%
7 PM 28° Mostly Clear 6% 6 mph SW 66%
8 PM 27° Mostly Clear 6% 6 mph SW 71%
9 PM 25° Mostly Clear 6% 5 mph SSW 73%
10 PM 24° Mostly Clear 6% 5 mph SSW 75%
11 PM 22° Mostly Clear 6% 5 mph SSW 76%
12 AM 22° Mostly Clear 7% 4 mph SSW 78%
1 AM 22° Mostly Clear 7% 4 mph SSW 79%
2 AM 22° Mostly Clear 3% 3 mph S 80%
3 AM 22° Mostly Clear 3% 3 mph S 80%
15-Day Forecast
Today
8/25
Partly Cloudy
7%
20°
30°
Wed
8/26
Partly Cloudy
10%
20°
31°
Thu
8/27
Partly Cloudy
11%
18°
30°
Fri
8/28
Partly Cloudy
3%
19°
32°
Sat
8/29
Mostly Clear
3%
20°
32°
Sun
8/30
Clear
3%
20°
29°
Mon
8/31
Mostly Clear
17%
18°
28°
Tue
9/1
Clear
43%
17°
28°
Wed
9/2
Mostly Cloudy
44%
18°
29°
Thu
9/3
Drizzle
45%
18°
29°
Fri
9/4
Clear
3%
22°
26°
Sat
9/5
Drizzle
60%
22°
26°
Sun
9/6
Drizzle
60%
22°
26°
Mon
9/7
Clear
25%
22°
26°
Tue
9/8
Drizzle
60%
22°
26°
47
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
47 AQI 8.5 µg/m³
O3
Ground-level ozone
45 AQI 50 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 47 Good 45 47
Wed 50 Good 50 49
Thu 52 Moderate 51 52
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Tue Aug 25, 09:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE38 J/kg
MUCAPE19 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index0.3
Kinematics
0–6 km Shear17 kt
0–1 km Shear7 kt
Eff. Shear—
0–1 km SRH-31
0–3 km SRH-8
Eff. SRH—
Storm Motion269° @ 15 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index24.7
Thermo & Levels
PWAT1.36 in
0–3 km LR2.7 °C/km
700–500 LR7.4 °C/km
Total Totals41.9
LCL982 hPa
LFC—
EL—
Freezing Lvl15,407 ft