Extreme Heat Warning — Catalina and Santa Barbara Islands, CA, Santa Barbara County Southwestern Coast, CA, Santa Barbara County Southeastern Coast, CA, Ventura County Beaches, CA, Ventura County Inland Coast, CA, Malibu Coast, CA, Los Angeles County Beaches, CA, Palos Verdes Hills, CA, Los Angeles County Inland Coast including Downtown Los Angeles, CA 10:00 PM Excessive Heat Watch 10:00 PM

Unincorporated Chatsworth, California

Last updated: 4:52 AM CDT  ·  Refresh
25°C
Feels like 25°
Mostly Clear
▲ 37°  /  ▼ 23°
Wind
3 mph SSE
Humidity
43%
Dew Point
12°
Pressure
28.07 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
29%
Sunrise
6:21 AM
Sunset
7:29 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Unincorporated Chatsworth is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:21AM · Sunset: 7:29PM.

Alerts

Extreme Heat Warning
Catalina and Santa Barbara Islands, CA, Santa Barbara County Southwestern Coast, CA, Santa Barbara County Southeastern Coast, CA, Ventura County Beaches, CA, Ventura County Inland Coast, CA, Malibu Coast, CA, Los Angeles County Beaches, CA, Palos Verdes Hills, CA, Los Angeles County Inland Coast including Downtown Los Angeles, CA
Expires 10:00 PM
Excessive Heat Watch
Expires 10:00 PM
71 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
4%
3 AM
24°
4%
4 AM
24°
4%
5 AM
21°
4%
6 AM
22°
4%
7 AM
23°
4%
8 AM
26°
3%
9 AM
28°
3%
10 AM
30°
3%
11 AM
31°
3%
12 PM
33°
3%
1 PM
37°
3%
2 PM
37°
3%
3 PM
36°
3%
4 PM
36°
3%
5 PM
37°
3%
6 PM
36°
3%
7 PM
34°
3%
8 PM
33°
3%
9 PM
29°
3%
10 PM
28°
3%
11 PM
28°
3%
12 AM
27°
3%
1 AM
27°
3%
7-Day Forecast
Today
37° 23°
Partly Cloudy.
Wed
37° 23°
Clear.
Thu
34° 22°
Mostly Cloudy with a 21% chance of rain.
Fri
35° 22°
Clear.
Sat
34° 21°
Clear.
Sun
33° 18°
Clear.
Mon
31° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 25° Mostly Clear 4% 3 mph SSE 43%
3 AM 24° Mostly Cloudy 4% 2 mph NNW 41%
4 AM 24° Overcast 4% 3 mph N 38%
5 AM 21° Mostly Cloudy 4% 4 mph NNW 36%
6 AM 22° Mostly Cloudy 4% 4 mph NNW 35%
7 AM 23° Mostly Cloudy 4% 3 mph N 34%
8 AM 26° Partly Cloudy 3% 2 mph W 30%
9 AM 28° Partly Cloudy 3% 3 mph SSW 26%
10 AM 30° Partly Cloudy 3% 5 mph SSW 23%
11 AM 31° Partly Cloudy 3% 6 mph SSW 22%
12 PM 33° Partly Cloudy 3% 8 mph SW 21%
1 PM 37° Partly Cloudy 3% 9 mph SW 20%
2 PM 37° Partly Cloudy 3% 10 mph SW 20%
3 PM 36° Partly Cloudy 3% 9 mph WSW 21%
4 PM 36° Partly Cloudy 3% 9 mph WSW 21%
5 PM 37° Mostly Clear 3% 7 mph WSW 23%
6 PM 36° Mostly Clear 3% 6 mph WSW 26%
7 PM 34° Mostly Clear 3% 4 mph WSW 30%
8 PM 33° Mostly Clear 3% 4 mph SW 34%
9 PM 29° Mostly Clear 3% 3 mph SSW 37%
10 PM 28° Mostly Clear 3% 3 mph S 39%
11 PM 28° Mostly Clear 3% 3 mph S 40%
12 AM 27° Mostly Clear 3% 3 mph S 41%
1 AM 27° Mostly Clear 3% 4 mph SSE 42%
15-Day Forecast
Today
8/25
Partly Cloudy
4%
23°
37°
Wed
8/26
Clear
3%
23°
37°
Thu
8/27
Mostly Cloudy
21%
22°
34°
Fri
8/28
Clear
7%
22°
35°
Sat
8/29
Clear
3%
21°
34°
Sun
8/30
Clear
3%
18°
33°
Mon
8/31
Clear
8%
16°
31°
Tue
9/1
Drizzle
42%
16°
31°
Wed
9/2
Clear
44%
19°
32°
Thu
9/3
Rain
63%
20°
33°
Fri
9/4
Clear
3%
20°
32°
Sat
9/5
Clear
25%
19°
32°
Sun
9/6
Clear
25%
19°
32°
Mon
9/7
Clear
25%
20°
32°
Tue
9/8
Clear
25%
20°
31°
71
Moderate
U.S. Air Quality Index · Dominant: O3
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
42 AQI 7.6 µg/m³
O3
Ground-level ozone
Dominant
71 AQI 62 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 71 Moderate 71 42
Wed 87 Moderate 87 42
Thu 104 Unhealthy for Sensitive Groups 104 46
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, 08:00'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
SBCAPE0 J/kg
MLCAPE21 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index3.1
Kinematics
0–6 km Shear16 kt
0–1 km Shear6 kt
Eff. Shear—
0–1 km SRH-22
0–3 km SRH2
Eff. SRH—
Storm Motion287° @ 15 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index24.4
Thermo & Levels
PWAT1.00 in
0–3 km LR5.2 °C/km
700–500 LR7.7 °C/km
Total Totals44.6
LCL779 hPa
LFC—
EL—
Freezing Lvl13,766 ft