Hourly Weather in City of Sammamish, Washington, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
2 mph
Calm
4 mph
Calm
5 mph
Calm
4 mph
Calm
3 mph
Calm
3 mph
Calm
3 mph
Calm
4 mph
Calm
5 mph
Calm
Humidity
43%
Dry
54%
Comfortable
63%
Humid
73%
Extremely humid
80%
Extremely humid
86%
Extremely humid
89%
Extremely humid
94%
Extremely humid
97%
Extremely humid
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
1017 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
1018 hPa
Normal
1018 hPa
High
1018 hPa
High
1018 hPa
High
1018 hPa
High
1018 hPa
Normal
Clouds
22%
27%
5%
2%
3%
2%
1%
0%
18%
Dew point
49°
51°
52°
52°
52°
52°
51°
51°
50°
UV Index
1
0
0
0
0
0
0
0
0
Air quality
42
Good
40
Good
37
Good
47
Good
52
Moderate
53
Moderate
51
Moderate
47
Good
40
Good
Pollen index
Tree
1 / 5
1 / 5
4 / 5
4 / 5
4 / 5
1 / 5
3 / 5
3 / 5
3 / 5
Weed
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Grass
0 / 5
1 / 5
0 / 5
0 / 5
0 / 5
1 / 5
1 / 5
1 / 5
1 / 5
Pollutants
Low risk
High risk
PM10
0.29 μg/ft3
0.31 μg/ft3
0.48 μg/ft3
0.56 μg/ft3
0.58 μg/ft3
0.56 μg/ft3
0.49 μg/ft3
0.40 μg/ft3
0.32 μg/ft3
PM25
0.19 μg/ft3
0.20 μg/ft3
0.33 μg/ft3
0.38 μg/ft3
0.40 μg/ft3
0.39 μg/ft3
0.34 μg/ft3
0.28 μg/ft3
0.22 μg/ft3
NO2
4.5 ppb
7.29 ppb
10.08 ppb
13.7 ppb
17.31 ppb
20.92 ppb
17.95 ppb
14.98 ppb
12 ppb
SO2
0.77 ppb
0.75 ppb
0.74 ppb
0.81 ppb
0.89 ppb
0.96 ppb
0.84 ppb
0.72 ppb
0.6 ppb
CO
0.16 ppb
0.19 ppb
0.22 ppb
0.24 ppb
0.27 ppb
0.29 ppb
0.27 ppb
0.24 ppb
0.22 ppb
O3
42.92 ppb
35.58 ppb
28.25 ppb
22.31 ppb
16.38 ppb
10.44 ppb
10.15 ppb
9.86 ppb
9.57 ppb