Hourly Weather in Petaluma, California, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
6 mph
Light
6 mph
Light
6 mph
Light
6 mph
Light
6 mph
Light
7 mph
Light
8 mph
Light
7 mph
Light
5 mph
Light
Humidity
39%
Dry
33%
Dry
29%
Very dry
24%
Very dry
21%
Very dry
18%
Extremely dry
16%
Extremely dry
15%
Extremely dry
8%
Extremely dry
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
1012 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1009 hPa
Low
Clouds
0%
0%
0%
0%
0%
0%
0%
0%
0%
Dew point
28°
31°
33°
34°
34°
33°
32°
31°
20°
UV Index
0
1
2
4
6
7
7
6
5
Air quality
41
Good
42
Good
38
Good
35
Good
46
Good
49
Good
61
Moderate
74
Moderate
81
Moderate
Pollen index
Tree
2 / 5
3 / 5
2 / 5
1 / 5
1 / 5
1 / 5
1 / 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
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
Pollutants
Low risk
High risk
PM10
1.05 μg/ft3
0.78 μg/ft3
1.00 μg/ft3
1.00 μg/ft3
0.89 μg/ft3
0.79 μg/ft3
0.60 μg/ft3
0.39 μg/ft3
0.33 μg/ft3
PM25
0.26 μg/ft3
0.28 μg/ft3
0.22 μg/ft3
0.21 μg/ft3
0.18 μg/ft3
0.16 μg/ft3
0.13 μg/ft3
0.09 μg/ft3
0.08 μg/ft3
NO2
6.72 ppb
5.24 ppb
4.3 ppb
3.35 ppb
2.41 ppb
1.84 ppb
1.28 ppb
0.71 ppb
0.74 ppb
SO2
0.29 ppb
0.3 ppb
0.52 ppb
0.74 ppb
0.95 ppb
0.81 ppb
0.66 ppb
0.51 ppb
0.49 ppb
CO
0.19 ppb
0.2 ppb
0.18 ppb
0.17 ppb
0.15 ppb
0.15 ppb
0.14 ppb
0.13 ppb
0.13 ppb
O3
16.04 ppb
16.9 ppb
30.25 ppb
43.6 ppb
56.95 ppb
59.75 ppb
62.55 ppb
65.35 ppb
65.76 ppb