Severe Thunderstorm Watch 8:00 PM

Chino Hills, California

Last updated: 5:20 PM CDT  ·  Refresh
36°C
Feels like 34°
Clear
▲ 36°  /  ▼ 21°
Wind
11 mph WSW
Humidity
25%
Dew Point
14°
Pressure
28.96 inHg
Visibility
10 mi
UV Index
8.3
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 35°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
36°
3%
4 PM
34°
3%
5 PM
34°
3%
6 PM
32°
3%
7 PM
30°
3%
8 PM
28°
3%
9 PM
26°
3%
10 PM
26°
3%
11 PM
24°
3%
12 AM
24°
3%
1 AM
23°
3%
2 AM
23°
3%
3 AM
23°
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
28°
3%
11 AM
29°
3%
12 PM
31°
3%
1 PM
33°
3%
2 PM
34°
3%
7-Day Forecast
Today
36° 21°
Mostly Clear.
Sat
37° 21°
Clear.
Sun
37° 22°
Clear.
Mon
36° 21°
Clear.
Tue
36° 23°
Clear.
Wed
37° 23°
Clear.
Thu
35° 25°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 36° Clear 3% 11 mph WSW 25%
4 PM 34° Clear 3% 12 mph WSW 25%
5 PM 34° Clear 3% 11 mph WSW 28%
6 PM 32° Mostly Clear 3% 9 mph WSW 41%
7 PM 30° Mostly Clear 3% 8 mph WSW 48%
8 PM 28° Partly Cloudy 3% 7 mph WSW 54%
9 PM 26° Partly Cloudy 3% 6 mph WSW 57%
10 PM 26° Partly Cloudy 3% 4 mph WSW 60%
11 PM 24° Mostly Clear 3% 4 mph WSW 61%
12 AM 24° Clear 3% 3 mph WSW 62%
1 AM 23° Clear 3% 3 mph WSW 64%
2 AM 23° Clear 3% 2 mph W 65%
3 AM 23° Clear 3% 2 mph W 65%
4 AM 22° Clear 3% 2 mph W 65%
5 AM 21° Clear 3% 1 mph W 64%
6 AM 21° Clear 3% 1 mph W 60%
7 AM 22° Clear 3% 2 mph W 57%
8 AM 23° Clear 3% 2 mph W 51%
9 AM 24° Clear 3% 3 mph W 44%
10 AM 28° Clear 3% 4 mph W 37%
11 AM 29° Clear 3% 5 mph W 33%
12 PM 31° Clear 3% 6 mph WSW 31%
1 PM 33° Clear 3% 7 mph WSW 28%
2 PM 34° Clear 3% 8 mph WSW 26%
15-Day Forecast
Today
8/21
Mostly Clear
3%
21°
36°
Sat
8/22
Clear
3%
21°
37°
Sun
8/23
Clear
3%
22°
37°
Mon
8/24
Clear
3%
21°
36°
Tue
8/25
Clear
3%
23°
36°
Wed
8/26
Clear
3%
23°
37°
Thu
8/27
Mostly Clear
3%
25°
35°
Fri
8/28
Clear
3%
22°
36°
Sat
8/29
Clear
3%
23°
34°
Sun
8/30
Mostly Clear
3%
23°
38°
Mon
8/31
Clear
3%
21°
33°
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, 21:00'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
SBCAPE349 J/kg
MLCAPE43 J/kg
MUCAPE957 J/kg
SBCIN-401 J/kg
MLCIN-1 J/kg
Lifted Index-1.1
Kinematics
0–6 km Shear14 kt
0–1 km Shear8 kt
Eff. Shear—
0–1 km SRH20
0–3 km SRH34
Eff. SRH—
Storm Motion242° @ 22 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index19.0
Thermo & Levels
PWAT1.23 in
0–3 km LR7.5 °C/km
700–500 LR7.3 °C/km
Total Totals42.8
LCL726 hPa
LFC580 hPa
EL245 hPa
Freezing Lvl15,180 ft