Heat Advisory — Santa Clarita Valley, CA, Lake Casitas, CA, Ojai Valley, CA, Central Ventura County Valleys, CA, Western Santa Monica Mountains Recreational Area, CA, Eastern Santa Monica Mountains Recreational Area, CA, Calabasas and Agoura Hills, CA, Western San Fernando Valley, CA, Eastern San Fernando Valley, CA, Southeastern Ventura County Valleys, CA, Santa Susana Mountains, CA, Southern Ventura County Mountains, CA, Northern Ventura County Mountains, CA, Interstate 5 Corridor, CA, Western San Gabriel Mountains and Highway 14 Corridor, CA, Eastern San Gabriel Mountains, CA, Western Antelope Valley Foothills, CA, Eastern Antelope Valley Foothills, CA, Los Angeles County San Gabriel Valley, CA, Cuyama Valley, CA, Santa Ynez Valley, CA, Santa Ynez Mountains Western Range, CA, Santa Ynez Mountains Eastern Range, CA, Santa Barbara County Interior Mountains, CA, Santa Barbara County Southwestern Coast, CA, Santa Barbara County Southeastern Coast, CA, Los Angeles County Inland Coast including Downtown Los Angeles, CA, Antelope Valley, CA 10:00 PM Extreme Heat Watch 10:00 PM

Ventura County, California, United States

Last updated: 11:27 PM CDT  ·  Refresh
22°C
Feels like 23°
Mostly Clear
▲ 26°  /  ▼ 18°
Wind
1 mph WSW
Humidity
55%
Dew Point
13°
Pressure
27.58 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
14%
Sunrise
5:57 AM
Sunset
8:06 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Ventura County is currently mostly clear at 22°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:57AM · Sunset: 8:06PM.

Alerts

Heat Advisory
Santa Clarita Valley, CA, Lake Casitas, CA, Ojai Valley, CA, Central Ventura County Valleys, CA, Western Santa Monica Mountains Recreational Area, CA, Eastern Santa Monica Mountains Recreational Area, CA, Calabasas and Agoura Hills, CA, Western San Fernando Valley, CA, Eastern San Fernando Valley, CA, Southeastern Ventura County Valleys, CA, Santa Susana Mountains, CA, Southern Ventura County Mountains, CA, Northern Ventura County Mountains, CA, Interstate 5 Corridor, CA, Western San Gabriel Mountains and Highway 14 Corridor, CA, Eastern San Gabriel Mountains, CA, Western Antelope Valley Foothills, CA, Eastern Antelope Valley Foothills, CA, Los Angeles County San Gabriel Valley, CA, Cuyama Valley, CA, Santa Ynez Valley, CA, Santa Ynez Mountains Western Range, CA, Santa Ynez Mountains Eastern Range, CA, Santa Barbara County Interior Mountains, CA, Santa Barbara County Southwestern Coast, CA, Santa Barbara County Southeastern Coast, CA, Los Angeles County Inland Coast including Downtown Los Angeles, CA, Antelope Valley, CA
Expires 10:00 PM
Extreme Heat Watch
Expires 10:00 PM
42 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
3%
10 PM
22°
3%
11 PM
22°
3%
12 AM
22°
3%
1 AM
21°
3%
2 AM
21°
3%
3 AM
21°
3%
4 AM
21°
3%
5 AM
19°
3%
6 AM
19°
3%
7 AM
21°
3%
8 AM
22°
3%
9 AM
24°
3%
10 AM
26°
3%
11 AM
27°
3%
12 PM
28°
3%
1 PM
29°
3%
2 PM
29°
3%
3 PM
28°
3%
4 PM
28°
3%
5 PM
28°
3%
6 PM
27°
3%
7 PM
26°
3%
8 PM
24°
3%
7-Day Forecast
Tonight
26° 18°
Mostly Clear.
Tue
29° 19°
Clear.
Wed
31° 18°
Clear.
Thu
34° 21°
Clear.
Fri
36° 21°
Clear.
Sat
37° 21°
Clear.
Sun
37° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 22° Mostly Clear 3% 1 mph WSW 55%
10 PM 22° Mostly Clear 3% 1 mph WNW 53%
11 PM 22° Mostly Clear 3% 1 mph NNW 53%
12 AM 22° Mostly Clear 3% 1 mph NW 53%
1 AM 21° Mostly Clear 3% 1 mph NW 53%
2 AM 21° Mostly Clear 3% 1 mph NNE 52%
3 AM 21° Mostly Clear 3% 1 mph NE 52%
4 AM 21° Clear 3% 2 mph NE 51%
5 AM 19° Clear 3% 2 mph N 51%
6 AM 19° Clear 3% 2 mph W 50%
7 AM 21° Clear 3% 2 mph SW 49%
8 AM 22° Clear 3% 3 mph SSW 48%
9 AM 24° Clear 3% 5 mph SSW 46%
10 AM 26° Clear 3% 6 mph SSW 44%
11 AM 27° Clear 3% 8 mph SW 42%
12 PM 28° Clear 3% 9 mph SW 40%
1 PM 29° Clear 3% 10 mph SW 39%
2 PM 29° Clear 3% 10 mph SW 38%
3 PM 28° Clear 3% 9 mph SW 38%
4 PM 28° Clear 3% 9 mph SW 38%
5 PM 28° Clear 3% 8 mph WSW 39%
6 PM 27° Clear 3% 7 mph WSW 44%
7 PM 26° Clear 3% 6 mph WSW 48%
8 PM 24° Clear 3% 5 mph WSW 51%
15-Day Forecast
Today
7/20
Mostly Clear
3%
18°
26°
Tue
7/21
Clear
3%
19°
29°
Wed
7/22
Clear
3%
18°
31°
Thu
7/23
Clear
3%
21°
34°
Fri
7/24
Clear
3%
21°
36°
Sat
7/25
Clear
3%
21°
37°
Sun
7/26
Clear
3%
22°
37°
Mon
7/27
Clear
3%
22°
37°
Tue
7/28
Clear
3%
21°
36°
Wed
7/29
Clear
3%
21°
36°
Thu
7/30
Clear
12%
21°
36°
Fri
7/31
Clear
3%
21°
38°
Sat
8/1
Clear
3%
21°
38°
Sun
8/2
Clear
3%
19°
37°
Mon
8/3
Clear
25%
19°
36°
42
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
42 AQI 7.6 µg/m³
O3
Ground-level ozone
39 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 42 Good 39 42
Wed 44 Good 44 44
Thu 44 Good 44 39
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 Jul 21, 03:00'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
MLCAPE13 J/kg
MUCAPE0 J/kg
SBCIN-7376 J/kg
MLCIN0 J/kg
Lifted Index4.4
Kinematics
0–6 km Shear5 kt
0–1 km Shear7 kt
Eff. Shear—
0–1 km SRH21
0–3 km SRH17
Eff. SRH—
Storm Motion70° @ 14 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index23.1
Thermo & Levels
PWAT1.17 in
0–3 km LR4.5 °C/km
700–500 LR6.7 °C/km
Total Totals41.0
LCL817 hPa
LFC—
EL—
Freezing Lvl14,239 ft