Hourly Weather in Seattle International Raceway, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
10 km/h
Light
10 km/h
Light
11 km/h
Light
18 km/h
Breezy
15 km/h
Light
19 km/h
Breezy
20 km/h
Breezy
19 km/h
Breezy
18 km/h
Breezy
Humidity
71%
Extremely humid
68%
Humid
61%
Humid
47%
Comfortable
56%
Comfortable
50%
Comfortable
50%
Comfortable
52%
Comfortable
55%
Comfortable
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
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
Clouds
39%
33%
37%
35%
81%
81%
85%
89%
82%
Dew point
13°
13°
12°
10°
12°
11°
11°
11°
12°
UV Index
3
3
4
3
2
2
1
1
0
Air quality
18
Good
19
Good
22
Good
24
Good
26
Good
29
Good
30
Good
29
Good
28
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
4.3 μg/m3
4.3 μg/m3
4.3 μg/m3
4.3 μg/m3
4.3 μg/m3
4.3 μg/m3
4.8 μg/m3
4.6 μg/m3
4.5 μg/m3
PM25
3.1 μg/m3
3.4 μg/m3
3.9 μg/m3
4.3 μg/m3
4.7 μg/m3
5.1 μg/m3
3.6 μg/m3
3.5 μg/m3
3.4 μg/m3
NO2
1.5 ppb
1.1 ppb
0.9 ppb
0.8 ppb
0.7 ppb
0.8 ppb
0.7 ppb
0.8 ppb
1 ppb
SO2
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 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
19.7 ppb
20 ppb
20.3 ppb
20.6 ppb
20.9 ppb
21.2 ppb
32.6 ppb
31.7 ppb
30.6 ppb