Hourly Weather in Napa Valley Exposition, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
12 km/h
Light
10 km/h
Light
13 km/h
Light
17 km/h
Breezy
19 km/h
Breezy
21 km/h
Breezy
22 km/h
Breezy
21 km/h
Breezy
19 km/h
Breezy
Humidity
57%
Comfortable
57%
Comfortable
48%
Comfortable
41%
Dry
35%
Dry
32%
Dry
35%
Dry
36%
Dry
37%
Dry
Visibility
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
Pressure
1016 hPa
Normal
1015 hPa
Normal
1016 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1014 hPa
Normal
1013 hPa
Normal
1013 hPa
Normal
Clouds
5%
7%
3%
0%
0%
0%
0%
0%
0%
Dew point
10°
12°
12°
11°
11°
10°
11°
11°
11°
UV Index
5
7
9
10
9
8
5
3
1
Air quality
24
Good
25
Good
26
Good
28
Good
29
Good
30
Good
32
Good
28
Good
27
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
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
6.2 μg/m3
6.4 μg/m3
PM25
4.2 μg/m3
4.4 μg/m3
4.6 μg/m3
4.9 μg/m3
5.2 μg/m3
5.4 μg/m3
5.7 μg/m3
4.5 μg/m3
4.6 μg/m3
NO2
1.3 ppb
0.8 ppb
0.7 ppb
0.6 ppb
0.5 ppb
0.5 ppb
0.5 ppb
0.3 ppb
0.5 ppb
SO2
0.3 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.3 ppb
0.3 ppb
0.3 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
17.8 ppb
18.8 ppb
20.1 ppb
21.8 ppb
23.4 ppb
25 ppb
26.4 ppb
30.2 ppb
29.2 ppb