Hourly Weather in Merrimac, Iowa, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
5 km/h
Calm
7 km/h
Calm
9 km/h
Light
8 km/h
Calm
4 km/h
Calm
4 km/h
Calm
5 km/h
Calm
6 km/h
Calm
8 km/h
Calm
Humidity
73%
Extremely humid
70%
Extremely humid
66%
Humid
66%
Humid
70%
Extremely humid
74%
Extremely humid
77%
Extremely humid
83%
Extremely humid
90%
Extremely humid
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
13 km
Good
Pressure
1013 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
Clouds
71%
65%
47%
9%
1%
3%
10%
2%
100%
Dew point
24°
24°
24°
24°
24°
24°
24°
24°
23°
UV Index
4
3
1
0
0
0
0
0
0
Air quality
53
Moderate
53
Moderate
53
Moderate
53
Moderate
53
Moderate
53
Moderate
53
Moderate
59
Moderate
59
Moderate
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
11.9 μg/m3
11.9 μg/m3
11.9 μg/m3
11.9 μg/m3
11.9 μg/m3
11.9 μg/m3
11.9 μg/m3
14.9 μg/m3
14.8 μg/m3
PM25
10.2 μg/m3
10.2 μg/m3
10.2 μg/m3
10.2 μg/m3
10.2 μg/m3
10.2 μg/m3
10.2 μg/m3
13.2 μg/m3
13.3 μg/m3
NO2
0.5 ppb
0.7 ppb
0.9 ppb
1 ppb
3.8 ppb
6.7 ppb
9.5 ppb
10.4 ppb
10.9 ppb
SO2
0.2 ppb
0.2 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.4 ppb
0.4 ppb
0.4 ppb
CO
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
O3
27.8 ppb
29.3 ppb
31.4 ppb
33.9 ppb
36.4 ppb
38.9 ppb
41 ppb
36.5 ppb
30.5 ppb