Hourly Weather in Alto, Washington, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
12 mph
Breezy
13 mph
Breezy
13 mph
Breezy
13 mph
Breezy
12 mph
Breezy
11 mph
Breezy
10 mph
Light
10 mph
Breezy
10 mph
Light
Humidity
90%
Extremely humid
90%
Extremely humid
90%
Extremely humid
90%
Extremely humid
90%
Extremely humid
91%
Extremely humid
92%
Extremely humid
92%
Extremely humid
92%
Extremely humid
Visibility
8 mi
Good
8 mi
Good
6 mi
Good
6 mi
Fair
8 mi
Good
4 mi
Fair
4 mi
Fair
3 mi
Fair
2 mi
Low
Pressure
1006 hPa
Low
1005 hPa
Low
1004 hPa
Low
1004 hPa
Low
1003 hPa
Very low
1003 hPa
Very low
1002 hPa
Very low
1002 hPa
Very low
1002 hPa
Very low
Clouds
100%
100%
100%
100%
100%
100%
100%
100%
100%
Dew point
53°
52°
51°
51°
50°
50°
50°
49°
50°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
24
Good
24
Good
23
Good
23
Good
23
Good
22
Good
21
Good
19
Good
17
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
0.13 μg/ft3
0.08 μg/ft3
0.06 μg/ft3
0.06 μg/ft3
0.06 μg/ft3
0.05 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.03 μg/ft3
PM25
0.09 μg/ft3
0.06 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.03 μg/ft3
0.03 μg/ft3
0.03 μg/ft3
0.02 μg/ft3
NO2
0.85 ppb
0.86 ppb
0.86 ppb
0.87 ppb
0.93 ppb
0.98 ppb
1.03 ppb
0.97 ppb
0.91 ppb
SO2
0.04 ppb
0.08 ppb
0.12 ppb
0.16 ppb
0.15 ppb
0.15 ppb
0.14 ppb
0.11 ppb
0.09 ppb
CO
0.11 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.09 ppb
0.09 ppb
0.09 ppb
0.09 ppb
0.09 ppb
O3
26.27 ppb
25.41 ppb
24.54 ppb
23.67 ppb
22.44 ppb
21.22 ppb
19.99 ppb
18.15 ppb
16.32 ppb