Hourly Weather in Signal Hill, California, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
8 mph
Light
7 mph
Light
6 mph
Light
5 mph
Light
5 mph
Light
5 mph
Light
5 mph
Light
5 mph
Light
5 mph
Light
Humidity
76%
Extremely humid
79%
Extremely humid
83%
Extremely humid
85%
Extremely humid
86%
Extremely humid
86%
Extremely humid
86%
Extremely humid
84%
Extremely humid
84%
Extremely humid
Visibility
10 mi
Good
10 mi
Good
9 mi
Good
8 mi
Good
8 mi
Good
8 mi
Good
9 mi
Good
9 mi
Good
10 mi
Good
Pressure
1014 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1016 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
Clouds
6%
5%
8%
36%
72%
60%
100%
100%
84%
Dew point
50°
50°
51°
50°
51°
51°
51°
51°
50°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
37
Good
32
Good
33
Good
37
Good
43
Good
50
Moderate
53
Moderate
53
Moderate
54
Moderate
Pollen index
Tree
0 / 5
0 / 5
0 / 5
0 / 5
1 / 5
0 / 5
0 / 5
0 / 5
0 / 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
0.29 μg/ft3
0.34 μg/ft3
0.39 μg/ft3
0.45 μg/ft3
0.51 μg/ft3
0.61 μg/ft3
0.63 μg/ft3
0.63 μg/ft3
0.64 μg/ft3
PM25
0.18 μg/ft3
0.21 μg/ft3
0.25 μg/ft3
0.28 μg/ft3
0.33 μg/ft3
0.40 μg/ft3
0.41 μg/ft3
0.40 μg/ft3
0.40 μg/ft3
NO2
6.95 ppb
9.45 ppb
11.95 ppb
14.46 ppb
16.06 ppb
17.67 ppb
19.28 ppb
20.64 ppb
21.99 ppb
SO2
1.21 ppb
1.3 ppb
1.38 ppb
1.46 ppb
1.59 ppb
1.72 ppb
1.84 ppb
2.49 ppb
3.13 ppb
CO
0.14 ppb
0.15 ppb
0.16 ppb
0.17 ppb
0.19 ppb
0.2 ppb
0.21 ppb
0.2 ppb
0.19 ppb
O3
33.77 ppb
29.37 ppb
24.97 ppb
20.57 ppb
18.34 ppb
16.11 ppb
13.87 ppb
12.48 ppb
11.09 ppb