Hourly Weather in Mason City, Illinois, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
9 mph
Light
9 mph
Light
10 mph
Breezy
11 mph
Breezy
11 mph
Breezy
10 mph
Light
11 mph
Breezy
10 mph
Light
10 mph
Breezy
Humidity
90%
Extremely humid
90%
Extremely humid
90%
Extremely humid
93%
Extremely humid
92%
Extremely humid
92%
Extremely humid
92%
Extremely humid
88%
Extremely humid
88%
Extremely humid
Visibility
8 mi
Good
8 mi
Good
8 mi
Good
6 mi
Good
3 mi
Fair
8 mi
Good
6 mi
Good
8 mi
Good
9 mi
Good
Pressure
1008 hPa
Low
1007 hPa
Low
1006 hPa
Low
1006 hPa
Low
1006 hPa
Low
1005 hPa
Low
1005 hPa
Low
1005 hPa
Low
1005 hPa
Low
Clouds
100%
100%
100%
100%
100%
100%
100%
92%
100%
Dew point
59°
59°
59°
61°
61°
61°
62°
61°
62°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
49
Good
42
Good
36
Good
36
Good
37
Good
36
Good
36
Good
36
Good
35
Good
Pollen index
Tree
1 / 5
1 / 5
0 / 5
0 / 5
1 / 5
1 / 5
2 / 5
2 / 5
1 / 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
0.41 μg/ft3
0.35 μg/ft3
0.30 μg/ft3
0.22 μg/ft3
0.12 μg/ft3
0.06 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.07 μg/ft3
PM25
0.29 μg/ft3
0.25 μg/ft3
0.21 μg/ft3
0.15 μg/ft3
0.08 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.05 μg/ft3
NO2
1.59 ppb
1.34 ppb
1.08 ppb
0.83 ppb
0.91 ppb
0.99 ppb
1.07 ppb
1.13 ppb
1.19 ppb
SO2
0.39 ppb
0.36 ppb
0.32 ppb
0.29 ppb
0.27 ppb
0.26 ppb
0.24 ppb
0.23 ppb
0.22 ppb
CO
0.17 ppb
0.16 ppb
0.16 ppb
0.15 ppb
0.15 ppb
0.15 ppb
0.15 ppb
0.16 ppb
0.16 ppb
O3
36.98 ppb
38.9 ppb
40.82 ppb
42.73 ppb
40.59 ppb
38.46 ppb
36.32 ppb
36.29 ppb
36.27 ppb