Hourly Weather in Portland, Iowa, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
5 mph
Calm
6 mph
Light
7 mph
Light
6 mph
Light
5 mph
Light
5 mph
Calm
4 mph
Calm
5 mph
Calm
5 mph
Calm
Humidity
86%
Extremely humid
82%
Extremely humid
80%
Extremely humid
76%
Extremely humid
72%
Extremely humid
70%
Extremely humid
68%
Humid
65%
Humid
63%
Humid
Visibility
9 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
1018 hPa
High
1018 hPa
High
1018 hPa
High
1018 hPa
High
1018 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
Clouds
100%
100%
99%
100%
44%
22%
19%
6%
5%
Dew point
63°
63°
64°
64°
64°
64°
64°
64°
64°
UV Index
0
1
1
2
3
3
3
4
3
Air quality
44
Good
40
Good
37
Good
36
Good
35
Good
36
Good
38
Good
40
Good
42
Good
Pollen index
Tree
5 / 5
5 / 5
5 / 5
5 / 5
4 / 5
4 / 5
5 / 5
5 / 5
5 / 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
0.24 μg/ft3
0.22 μg/ft3
0.21 μg/ft3
0.20 μg/ft3
0.20 μg/ft3
0.20 μg/ft3
0.19 μg/ft3
0.18 μg/ft3
0.16 μg/ft3
PM25
0.22 μg/ft3
0.20 μg/ft3
0.19 μg/ft3
0.18 μg/ft3
0.18 μg/ft3
0.18 μg/ft3
0.17 μg/ft3
0.16 μg/ft3
0.15 μg/ft3
NO2
1.6 ppb
1.4 ppb
1.2 ppb
1.1 ppb
1 ppb
0.9 ppb
0.8 ppb
0.7 ppb
0.6 ppb
SO2
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
N/A
0.1 ppb
0.1 ppb
0.1 ppb
CO
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.2 ppb
0.2 ppb
O3
28.5 ppb
30 ppb
32.7 ppb
35.1 ppb
37.3 ppb
39.3 ppb
41.3 ppb
43.2 ppb
44.8 ppb