Hourly Weather in Castaic, California, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
7 mph
Light
8 mph
Light
9 mph
Light
10 mph
Breezy
14 mph
Breezy
14 mph
Breezy
15 mph
Breezy
13 mph
Breezy
10 mph
Breezy
Humidity
65%
Humid
62%
Humid
60%
Humid
60%
Comfortable
56%
Comfortable
61%
Humid
65%
Humid
71%
Extremely humid
76%
Extremely humid
Visibility
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
Pressure
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1013 hPa
Normal
1013 hPa
Normal
1013 hPa
Normal
1013 hPa
Normal
1013 hPa
Normal
Clouds
18%
10%
6%
5%
0%
0%
0%
2%
0%
Dew point
51°
51°
51°
50°
50°
51°
51°
52°
52°
UV Index
8
9
8
6
3
1
0
0
0
Air quality
54
Moderate
54
Moderate
54
Moderate
53
Moderate
51
Moderate
48
Good
44
Good
42
Good
40
Good
Pollen index
Tree
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
1 / 5
1 / 5
Weed
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Grass
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Pollutants
Low risk
High risk
PM10
0.70 μg/ft3
0.70 μg/ft3
0.68 μg/ft3
0.64 μg/ft3
0.60 μg/ft3
0.54 μg/ft3
0.49 μg/ft3
0.44 μg/ft3
0.41 μg/ft3
PM25
0.38 μg/ft3
0.38 μg/ft3
0.37 μg/ft3
0.35 μg/ft3
0.31 μg/ft3
0.28 μg/ft3
0.25 μg/ft3
0.23 μg/ft3
0.23 μg/ft3
NO2
8.8 ppb
7.69 ppb
6.58 ppb
5.98 ppb
5.39 ppb
4.79 ppb
6.2 ppb
7.61 ppb
9.02 ppb
SO2
4.69 ppb
4.35 ppb
4.01 ppb
3.47 ppb
2.93 ppb
2.4 ppb
2.24 ppb
2.09 ppb
1.93 ppb
CO
0.16 ppb
0.16 ppb
0.15 ppb
0.15 ppb
0.15 ppb
0.14 ppb
0.14 ppb
0.14 ppb
0.15 ppb
O3
38.17 ppb
43.08 ppb
47.99 ppb
48.79 ppb
49.59 ppb
50.38 ppb
45.95 ppb
41.52 ppb
37.09 ppb