Extreme Heat Watch 10:00 PM

Antelope Valley, California, United States

Last updated: 11:41 AM CDT  ·  Refresh
30°C
Feels like 28°
Mostly Clear
▲ 36°  /  ▼ 20°
Wind
14 mph WSW
Humidity
23%
Dew Point
7°
Pressure
27.35 inHg
Visibility
10 mi
UV Index
7.9
Cloud Cover
22%
Sunrise
5:53 AM
Sunset
8:02 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Antelope Valley is currently mostly clear at 30°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:53AM · Sunset: 8:02PM.

Alerts

Extreme Heat Watch
Expires 10:00 PM
54 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
3%
10 AM
30°
3%
11 AM
32°
3%
12 PM
32°
3%
1 PM
36°
3%
2 PM
35°
3%
3 PM
34°
3%
4 PM
34°
3%
5 PM
36°
3%
6 PM
34°
3%
7 PM
32°
3%
8 PM
30°
3%
9 PM
28°
3%
10 PM
27°
3%
11 PM
26°
3%
12 AM
26°
3%
1 AM
24°
3%
2 AM
24°
3%
3 AM
24°
3%
4 AM
23°
3%
5 AM
22°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
26°
3%
7-Day Forecast
Today
36° 20°
Clear.
Wed
38° 20°
Clear.
Thu
41° 19°
Clear.
Fri
42° 23°
Clear.
Sat
42° 24°
Clear.
Sun
42° 24°
Clear.
Mon
41° 23°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 30° Mostly Clear 3% 14 mph WSW 23%
10 AM 30° Clear 3% 15 mph WSW 20%
11 AM 32° Clear 3% 16 mph WSW 19%
12 PM 32° Clear 3% 17 mph WSW 18%
1 PM 36° Clear 3% 19 mph WSW 18%
2 PM 35° Clear 3% 20 mph WSW 18%
3 PM 34° Clear 3% 21 mph WSW 19%
4 PM 34° Clear 3% 21 mph WSW 19%
5 PM 36° Clear 3% 19 mph WSW 21%
6 PM 34° Clear 3% 17 mph WSW 24%
7 PM 32° Clear 3% 14 mph WSW 27%
8 PM 30° Clear 3% 14 mph WSW 32%
9 PM 28° Clear 3% 13 mph WSW 37%
10 PM 27° Clear 3% 13 mph WSW 42%
11 PM 26° Clear 3% 12 mph WSW 45%
12 AM 26° Clear 3% 12 mph WSW 48%
1 AM 24° Clear 3% 11 mph WSW 50%
2 AM 24° Clear 3% 10 mph WSW 52%
3 AM 24° Clear 3% 10 mph WSW 53%
4 AM 23° Clear 3% 10 mph WSW 54%
5 AM 22° Clear 3% 10 mph WSW 52%
6 AM 23° Clear 3% 10 mph WSW 47%
7 AM 24° Clear 3% 10 mph W 43%
8 AM 26° Clear 3% 10 mph W 38%
15-Day Forecast
Today
7/21
Clear
3%
20°
36°
Wed
7/22
Clear
3%
20°
38°
Thu
7/23
Clear
3%
19°
41°
Fri
7/24
Clear
3%
23°
42°
Sat
7/25
Clear
3%
24°
42°
Sun
7/26
Clear
3%
24°
42°
Mon
7/27
Clear
3%
23°
41°
Tue
7/28
Clear
3%
23°
41°
Wed
7/29
Clear
19%
23°
39°
Thu
7/30
Clear
3%
24°
41°
Fri
7/31
Clear
25%
25°
39°
Sat
8/1
Clear
3%
24°
40°
Sun
8/2
Clear
3%
24°
39°
Mon
8/3
Clear
3%
23°
39°
Tue
8/4
Clear
3%
23°
39°
54
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
34 AQI 6.2 µg/m³
O3
Ground-level ozone
Dominant
54 AQI 56 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 54 Moderate 54 34
Thu 40 Good 40 21
Fri 42 Good 42 19
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
SBCAPE13 J/kg
MLCAPE9 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index4.4
Kinematics
0–6 km Shear10 kt
0–1 km Shear13 kt
Eff. Shear—
0–1 km SRH32
0–3 km SRH-9
Eff. SRH—
Storm Motion357° @ 14 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index26.5
Thermo & Levels
PWAT1.30 in
0–3 km LR7.3 °C/km
700–500 LR7.0 °C/km
Total Totals41.7
LCL665 hPa
LFC926 hPa
EL877 hPa
Freezing Lvl13,560 ft