Hourly Weather in Ontario, California, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
5 mph
Calm
5 mph
Calm
5 mph
Calm
5 mph
Light
6 mph
Light
7 mph
Light
9 mph
Light
10 mph
Light
10 mph
Breezy
Humidity
83%
Extremely humid
79%
Extremely humid
73%
Extremely humid
67%
Humid
59%
Comfortable
53%
Comfortable
51%
Comfortable
52%
Comfortable
54%
Comfortable
Visibility
8 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
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1013 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
Clouds
100%
73%
43%
20%
8%
5%
4%
2%
3%
Dew point
53°
54°
54°
55°
55°
55°
55°
54°
53°
UV Index
1
3
5
7
8
8
7
5
3
Air quality
67
Moderate
68
Moderate
69
Moderate
68
Moderate
68
Moderate
82
Moderate
105
Unhealthy for sensitive groups
112
Unhealthy for sensitive groups
112
Unhealthy for sensitive groups
Pollen index
Tree
1 / 5
1 / 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
0.97 μg/ft3
0.98 μg/ft3
0.98 μg/ft3
0.95 μg/ft3
0.94 μg/ft3
0.94 μg/ft3
0.95 μg/ft3
0.92 μg/ft3
0.86 μg/ft3
PM25
0.60 μg/ft3
0.60 μg/ft3
0.60 μg/ft3
0.58 μg/ft3
0.57 μg/ft3
0.58 μg/ft3
0.59 μg/ft3
0.57 μg/ft3
0.54 μg/ft3
NO2
22.6 ppb
19.63 ppb
16.67 ppb
13.71 ppb
12.68 ppb
11.64 ppb
10.61 ppb
10.79 ppb
10.98 ppb
SO2
4.69 ppb
5.03 ppb
5.37 ppb
5.71 ppb
5.7 ppb
5.69 ppb
5.68 ppb
5.64 ppb
5.6 ppb
CO
0.3 ppb
0.28 ppb
0.26 ppb
0.24 ppb
0.23 ppb
0.23 ppb
0.22 ppb
0.21 ppb
0.21 ppb
O3
27.23 ppb
37.59 ppb
47.95 ppb
58.3 ppb
64.93 ppb
71.55 ppb
78.17 ppb
75.78 ppb
73.39 ppb