Hourly Weather in Palo Alto, California, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
19 km/h
Breezy
15 km/h
Light
13 km/h
Light
4 km/h
Calm
6 km/h
Calm
8 km/h
Calm
6 km/h
Calm
6 km/h
Calm
6 km/h
Calm
Humidity
51%
Comfortable
58%
Comfortable
70%
Extremely humid
76%
Extremely humid
82%
Extremely humid
88%
Extremely humid
90%
Extremely humid
90%
Extremely humid
90%
Extremely humid
Visibility
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
15 km
Good
14 km
Good
13 km
Good
13 km
Good
Pressure
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
Clouds
0%
0%
0%
0%
0%
0%
1%
2%
2%
Dew point
12°
12°
13°
13°
13°
14°
14°
13°
13°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
22
Good
22
Good
23
Good
25
Good
30
Good
34
Good
37
Good
44
Good
40
Good
Pollen index
Tree
0 / 5
0 / 5
0 / 5
0 / 5
0 / 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
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
10.8 μg/m3
9.6 μg/m3
PM25
2.7 μg/m3
3.2 μg/m3
3.8 μg/m3
4.5 μg/m3
5.3 μg/m3
6 μg/m3
6.6 μg/m3
7.9 μg/m3
7.1 μg/m3
NO2
2.2 ppb
2.7 ppb
3.2 ppb
3.7 ppb
4.2 ppb
3.7 ppb
3.2 ppb
3.7 ppb
3.4 ppb
SO2
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.5 ppb
0.4 ppb
0.4 ppb
0.5 ppb
0.5 ppb
CO
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
O3
23.8 ppb
24.1 ppb
24.4 ppb
24.8 ppb
25.1 ppb
25.5 ppb
25.8 ppb
18.3 ppb
18 ppb