Western San Gabriel Mountains and Highway 14 Corridor, CA

Last updated: 4:59 AM CDT  ·  Refresh
24°C
Feels like 28°
Mostly Clear
▲ 33°  /  ▼ 24°
Wind
2 mph NE
Humidity
92%
Dew Point
23°
Pressure
29.97 inHg
Visibility
7 mi
UV Index
0.0
Cloud Cover
25%
Sunrise
6:37 AM
Sunset
7:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Western San Gabriel Mountains and Highway 14 Corridor is currently mostly clear at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2562 J/kg) — isolated convective development possible. Sunrise: 6:37AM · Sunset: 7:35PM.

Alerts

No active alerts for this location.
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
16%
5 AM
22°
36%
6 AM
22°
38%
7 AM
24°
40%
8 AM
26°
34%
9 AM
27°
34%
10 AM
29°
34%
11 AM
30°
34%
12 PM
31°
28%
1 PM
32°
29%
2 PM
33°
29%
3 PM
33°
30%
4 PM
33°
13%
5 PM
33°
14%
6 PM
32°
8%
7 PM
31°
8%
8 PM
30°
9%
9 PM
28°
5%
10 PM
28°
5%
11 PM
27°
5%
12 AM
27°
5%
1 AM
27°
5%
2 AM
27°
5%
3 AM
27°
5%
7-Day Forecast
Today
33° 24°
Partly Cloudy with a 40% chance of rain.
Wed
36° 24°
Mostly Clear with a 37% chance of rain.
Thu
37° 24°
Mostly Cloudy with a 85% chance of rain.
Fri
31° 23°
Partly Cloudy with a 70% chance of rain.
Sat
33° 23°
Drizzle, 51% chance.
Sun
33° 23°
Rain, 64% chance.
Mon
33° 23°
Drizzle, 53% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Clear 16% 2 mph NE 92%
5 AM 22° Clear 36% 2 mph NE 91%
6 AM 22° Mostly Clear 38% 2 mph NE 91%
7 AM 24° Mostly Clear 40% 2 mph NE 87%
8 AM 26° Mostly Clear 34% 2 mph N 82%
9 AM 27° Mostly Clear 34% 3 mph NW 79%
10 AM 29° Partly Cloudy 34% 5 mph NW 75%
11 AM 30° Partly Cloudy 34% 7 mph NNW 70%
12 PM 31° Mostly Cloudy 28% 8 mph NNW 64%
1 PM 32° Mostly Cloudy 29% 8 mph NNW 60%
2 PM 33° Partly Cloudy 29% 8 mph NNW 57%
3 PM 33° Mostly Clear 30% 8 mph NNW 54%
4 PM 33° Mostly Clear 13% 6 mph NNW 56%
5 PM 33° Mostly Clear 14% 4 mph N 59%
6 PM 32° Partly Cloudy 8% 2 mph NE 63%
7 PM 31° Partly Cloudy 8% 2 mph ESE 68%
8 PM 30° Partly Cloudy 9% 3 mph SSW 73%
9 PM 28° Mostly Clear 5% 4 mph SW 78%
10 PM 28° Mostly Clear 5% 3 mph SW 81%
11 PM 27° Mostly Clear 5% 3 mph SW 83%
12 AM 27° Mostly Clear 5% 3 mph SW 84%
1 AM 27° Mostly Clear 5% 3 mph WSW 85%
2 AM 27° Mostly Clear 5% 3 mph WSW 86%
3 AM 27° Mostly Clear 5% 3 mph WSW 86%
15-Day Forecast
Today
8/25
Partly Cloudy
40%
24°
33°
Wed
8/26
Mostly Clear
37%
24°
36°
Thu
8/27
Mostly Cloudy
85%
24°
37°
Fri
8/28
Partly Cloudy
70%
23°
31°
Sat
8/29
Drizzle
51%
23°
33°
Sun
8/30
Rain
64%
23°
33°
Mon
8/31
Drizzle
53%
23°
33°
Tue
9/1
Drizzle
42%
23°
34°
Wed
9/2
Rain
68%
24°
35°
Thu
9/3
Rain
64%
24°
35°
Fri
9/4
Drizzle
60%
23°
34°
Sat
9/5
Drizzle
60%
23°
33°
Sun
9/6
Drizzle
60%
23°
34°
Mon
9/7
Drizzle
60%
23°
33°
Tue
9/8
Drizzle
60%
23°
33°
53
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
53 AQI 10.1 µg/m³
O3
Ground-level ozone
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 53 Moderate 35 53
Wed 52 Moderate 40 52
Thu 55 Moderate 40 55
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 Tue Aug 25, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE412 J/kg
MLCAPE47 J/kg
MUCAPE412 J/kg
SBCIN-238 J/kg
MLCIN-278 J/kg
Lifted Index-1.6
Kinematics
0–6 km Shear24 kt
0–1 km Shear12 kt
Eff. Shear23 kt
0–1 km SRH-1
0–3 km SRH112
Eff. SRH112
Storm Motion50° @ 21 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.6
K-Index32.5
Thermo & Levels
PWAT1.94 in
0–3 km LR4.4 °C/km
700–500 LR5.6 °C/km
Total Totals42.8
LCL1000 hPa
LFC724 hPa
EL200 hPa
Freezing Lvl15,476 ft