Severe Thunderstorm Watch 8:00 PM

Chino Hills, California

Last updated: 6:24 PM CDT  ·  Refresh
34°C
Feels like 33°
Clear
▲ 34°  /  ▼ 21°
Wind
12 mph WSW
Humidity
26%
Dew Point
14°
Pressure
28.95 inHg
Visibility
10 mi
UV Index
7.0
Cloud Cover
3%
Sunrise
6:16 AM
Sunset
7:30 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Chino Hills is currently clear at 34°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:16AM · Sunset: 7:30PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
101 AQI · Unhealthy for Sensitive Groups Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
3%
5 PM
34°
3%
6 PM
32°
3%
7 PM
30°
3%
8 PM
28°
3%
9 PM
26°
3%
10 PM
25°
3%
11 PM
24°
3%
12 AM
24°
3%
1 AM
23°
3%
2 AM
23°
3%
3 AM
22°
3%
4 AM
22°
3%
5 AM
21°
3%
6 AM
21°
3%
7 AM
22°
3%
8 AM
23°
3%
9 AM
24°
3%
10 AM
26°
3%
11 AM
29°
3%
12 PM
30°
3%
1 PM
33°
3%
2 PM
34°
3%
3 PM
36°
3%
7-Day Forecast
Today
34° 21°
Mostly Clear.
Sat
36° 21°
Clear.
Sun
37° 21°
Clear.
Mon
36° 21°
Clear.
Tue
38° 22°
Clear.
Wed
37° 23°
Clear.
Thu
36° 22°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 34° Clear 3% 12 mph WSW 26%
5 PM 34° Clear 3% 11 mph WSW 30%
6 PM 32° Mostly Clear 3% 9 mph WSW 40%
7 PM 30° Mostly Clear 3% 8 mph WSW 48%
8 PM 28° Mostly Clear 3% 7 mph WSW 54%
9 PM 26° Mostly Clear 3% 6 mph WSW 58%
10 PM 25° Mostly Clear 3% 4 mph WSW 61%
11 PM 24° Mostly Clear 3% 4 mph WSW 62%
12 AM 24° Clear 3% 4 mph WSW 64%
1 AM 23° Clear 3% 3 mph WSW 65%
2 AM 23° Clear 3% 2 mph W 66%
3 AM 22° Clear 3% 2 mph W 66%
4 AM 22° Clear 3% 2 mph W 66%
5 AM 21° Clear 3% 2 mph W 65%
6 AM 21° Clear 3% 2 mph W 61%
7 AM 22° Clear 3% 2 mph W 58%
8 AM 23° Clear 3% 2 mph W 51%
9 AM 24° Clear 3% 4 mph W 44%
10 AM 26° Clear 3% 5 mph W 38%
11 AM 29° Clear 3% 6 mph W 34%
12 PM 30° Clear 3% 6 mph WSW 31%
1 PM 33° Clear 3% 7 mph WSW 29%
2 PM 34° Clear 3% 8 mph WSW 27%
3 PM 36° Clear 3% 9 mph WSW 27%
15-Day Forecast
Today
8/21
Mostly Clear
3%
21°
34°
Sat
8/22
Clear
3%
21°
36°
Sun
8/23
Clear
3%
21°
37°
Mon
8/24
Clear
3%
21°
36°
Tue
8/25
Clear
3%
22°
38°
Wed
8/26
Clear
3%
23°
37°
Thu
8/27
Mostly Clear
3%
22°
36°
Fri
8/28
Clear
3%
25°
37°
Sat
8/29
Clear
3%
23°
38°
Sun
8/30
Mostly Clear
3%
23°
38°
Mon
8/31
Clear
3%
21°
36°
Tue
9/1
Clear
25%
21°
31°
Wed
9/2
Clear
25%
21°
30°
Thu
9/3
Clear
3%
21°
31°
Fri
9/4
Clear
25%
22°
31°
101
Unhealthy for Sensitive Groups
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Members of sensitive groups may experience health effects; the general public is less likely to be affected.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
59 AQI 13.6 µg/m³
O3
Ground-level ozone
Dominant
101 AQI 72 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 101 Unhealthy for Sensitive Groups 101 59
Sun 112 Unhealthy for Sensitive Groups 112 60
Mon 84 Moderate 84 58
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 Fri Aug 21, 22:00'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
SBCAPE125 J/kg
MLCAPE5 J/kg
MUCAPE125 J/kg
SBCIN-526 J/kg
MLCIN0 J/kg
Lifted Index-0.9
Kinematics
0–6 km Shear11 kt
0–1 km Shear4 kt
Eff. Shear—
0–1 km SRH12
0–3 km SRH23
Eff. SRH—
Storm Motion222° @ 22 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index25.5
Thermo & Levels
PWAT1.26 in
0–3 km LR7.2 °C/km
700–500 LR7.5 °C/km
Total Totals45.2
LCL734 hPa
LFC557 hPa
EL300 hPa
Freezing Lvl15,141 ft