Heat Advisory — Los Angeles County Inland Coast including Downtown Los Angeles, CA 10:00 PM

Santa Clarita, California

Last updated: 11:17 AM CDT  ·  Refresh
25°C
Feels like 23°
Mostly Clear
▲ 31°  /  ▼ 18°
Wind
7 mph SSW
Humidity
43%
Dew Point
12°
Pressure
28.30 inHg
Visibility
10 mi
UV Index
7.4
Cloud Cover
12%
Sunrise
5:56 AM
Sunset
8:03 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Santa Clarita is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:56AM · Sunset: 8:03PM.

Alerts

Heat Advisory
Los Angeles County Inland Coast including Downtown Los Angeles, CA
Expires 10:00 PM
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
3%
10 AM
24°
3%
11 AM
26°
3%
12 PM
27°
3%
1 PM
31°
3%
2 PM
31°
3%
3 PM
30°
3%
4 PM
29°
3%
5 PM
31°
3%
6 PM
29°
3%
7 PM
27°
3%
8 PM
25°
3%
9 PM
23°
3%
10 PM
22°
3%
11 PM
22°
3%
12 AM
21°
3%
1 AM
21°
3%
2 AM
20°
3%
3 AM
20°
3%
4 AM
19°
3%
5 AM
18°
3%
6 AM
18°
3%
7 AM
19°
3%
8 AM
19°
3%
7-Day Forecast
Today
31° 18°
Clear.
Wed
32° 18°
Clear.
Thu
37° 20°
Clear.
Fri
36° 22°
Clear.
Sat
37° 20°
Clear.
Sun
37° 21°
Clear.
Mon
37° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 25° Mostly Clear 3% 7 mph SSW 43%
10 AM 24° Clear 3% 9 mph SSW 37%
11 AM 26° Clear 3% 10 mph SSW 33%
12 PM 27° Clear 3% 10 mph SW 30%
1 PM 31° Clear 3% 11 mph SW 28%
2 PM 31° Clear 3% 12 mph WSW 26%
3 PM 30° Clear 3% 12 mph WSW 26%
4 PM 29° Clear 3% 12 mph WSW 26%
5 PM 31° Clear 3% 11 mph WSW 29%
6 PM 29° Clear 3% 9 mph WSW 41%
7 PM 27° Clear 3% 7 mph WSW 52%
8 PM 25° Clear 3% 5 mph WSW 63%
9 PM 23° Clear 3% 4 mph WSW 70%
10 PM 22° Clear 3% 4 mph W 75%
11 PM 22° Clear 3% 3 mph W 80%
12 AM 21° Clear 3% 3 mph WSW 81%
1 AM 21° Clear 3% 3 mph WSW 82%
2 AM 20° Clear 3% 2 mph WSW 83%
3 AM 20° Clear 3% 2 mph SW 83%
4 AM 19° Clear 3% 2 mph SSW 84%
5 AM 18° Clear 3% 2 mph SSW 83%
6 AM 18° Clear 3% 2 mph SW 79%
7 AM 19° Clear 3% 2 mph SW 75%
8 AM 19° Clear 3% 2 mph SW 71%
15-Day Forecast
Today
7/21
Clear
3%
18°
31°
Wed
7/22
Clear
3%
18°
32°
Thu
7/23
Clear
3%
20°
37°
Fri
7/24
Clear
3%
22°
36°
Sat
7/25
Clear
3%
20°
37°
Sun
7/26
Clear
3%
21°
37°
Mon
7/27
Clear
3%
22°
37°
Tue
7/28
Clear
3%
19°
34°
Wed
7/29
Clear
19%
19°
34°
Thu
7/30
Clear
3%
21°
36°
Fri
7/31
Clear
3%
22°
36°
Sat
8/1
Clear
3%
22°
36°
Sun
8/2
Clear
3%
22°
36°
Mon
8/3
Clear
3%
21°
34°
Tue
8/4
Clear
3%
21°
34°
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 10.3 µg/m³
O3
Ground-level ozone
49 AQI 53 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 53 Moderate 49 53
Thu 46 Good 46 38
Fri 80 Moderate 80 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 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Tue Jul 21, 15:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE7 J/kg
MLCAPE17 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index5.0
Kinematics
0–6 km Shear2 kt
0–1 km Shear12 kt
Eff. Shear—
0–1 km SRH-0
0–3 km SRH4
Eff. SRH—
Storm Motion310° @ 18 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index23.1
Thermo & Levels
PWAT1.27 in
0–3 km LR5.3 °C/km
700–500 LR6.5 °C/km
Total Totals36.8
LCL792 hPa
LFC958 hPa
EL921 hPa
Freezing Lvl14,610 ft