Hourly Weather in San Jose, California, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
2 mph
Calm
2 mph
Calm
3 mph
Calm
4 mph
Calm
3 mph
Calm
3 mph
Calm
3 mph
Calm
4 mph
Calm
3 mph
Calm
Humidity
62%
Humid
64%
Humid
69%
Humid
68%
Humid
58%
Comfortable
47%
Comfortable
38%
Dry
30%
Very dry
22%
Very 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
1019 hPa
High
1020 hPa
High
1020 hPa
High
1020 hPa
High
1020 hPa
High
1020 hPa
High
1019 hPa
High
1019 hPa
High
1018 hPa
Normal
Clouds
0%
12%
0%
0%
0%
0%
0%
0%
0%
Dew point
40°
40°
40°
39°
39°
38°
36°
33°
29°
UV Index
0
0
0
0
0
1
3
5
7
Air quality
29
Good
28
Good
26
Good
26
Good
27
Good
28
Good
30
Good
32
Good
33
Good
Pollen index
Tree
Weed
Grass
Pollutants
Low risk
High risk
PM10
0.12 μg/ft3
0.14 μg/ft3
0.15 μg/ft3
0.17 μg/ft3
0.16 μg/ft3
0.13 μg/ft3
0.12 μg/ft3
0.11 μg/ft3
0.09 μg/ft3
PM25
0.08 μg/ft3
0.09 μg/ft3
0.10 μg/ft3
0.11 μg/ft3
0.11 μg/ft3
0.08 μg/ft3
0.07 μg/ft3
0.07 μg/ft3
0.06 μg/ft3
NO2
0.53 ppb
0.56 ppb
0.58 ppb
0.47 ppb
0.37 ppb
0.26 ppb
0.2 ppb
0.15 ppb
0.1 ppb
SO2
0.03 ppb
0.03 ppb
0.03 ppb
0.04 ppb
0.04 ppb
0.04 ppb
0.03 ppb
0.02 ppb
0.01 ppb
CO
0.09 ppb
0.09 ppb
0.1 ppb
0.09 ppb
0.09 ppb
0.09 ppb
0.08 ppb
0.08 ppb
0.07 ppb
O3
28.69 ppb
27.01 ppb
25.32 ppb
28.33 ppb
31.34 ppb
34.35 ppb
35.86 ppb
37.38 ppb
38.9 ppb
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