Hourly Weather | Tomorrow Sunday, September 20, 2026
Boulder, Colorado
12 AM
Cloudy Night
57°
Feels Like 57°
34
Humidity: 78%
UV Index: 0
Wind: 5 mph
1 AM
Cloudy Night
55°
Feels Like 55°
27
Humidity: 78%
UV Index: 0
Wind: 5 mph
2 AM
Cloudy Night
55°
Feels Like 55°
13
Humidity: 78%
UV Index: 0
Wind: 5 mph
3 AM
Cloudy Night
54°
Feels Like 54°
13
Humidity: 79%
UV Index: 0
Wind: 5 mph
4 AM
Cloudy Night
54°
Feels Like 54°
13
Humidity: 79%
UV Index: 0
Wind: 5 mph
5 AM
Cloudy Night
52°
Feels Like 52°
13
Humidity: 81%
UV Index: 0
Wind: 4 mph
6 AM
Cloudy Night
52°
Feels Like 52°
13
Humidity: 82%
UV Index: 0
Wind: 5 mph
7 AM
Cloudy Weather
50°
Feels Like 50°
11
Humidity: 88%
UV Index: 0
Wind: 4 mph
8 AM
Cloudy Weather
55°
Feels Like 57°
7
Humidity: 75%
UV Index: 1
Wind: 5 mph
9 AM
Cloudy Weather
59°
Feels Like 63°
7
Humidity: 70%
UV Index: 2
Wind: 5 mph
10 AM
Cloudy Weather
63°
Feels Like 66°
6
Humidity: 64%
UV Index: 3
Wind: 6 mph
11 AM
Cloudy Weather
64°
Feels Like 72°
5
Humidity: 58%
UV Index: 4
Wind: 6 mph
12 PM
Cloudy Weather
68°
Feels Like 73°
5
Humidity: 52%
UV Index: 5
Wind: 7 mph
1 PM
Cloudy Weather
70°
Feels Like 75°
8
Humidity: 48%
UV Index: 6
Wind: 7 mph
2 PM
Cloudy Weather
72°
Feels Like 75°
43
Humidity: 45%
UV Index: 5
Wind: 7 mph
3 PM
Cloudy Weather
72°
Feels Like 75°
47
Humidity: 43%
UV Index: 4
Wind: 7 mph
4 PM
Sunny with a Chance of Thunderstorms
70°
Feels Like 70°
51
Humidity: 48%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
70°
Feels Like 70°
19
Humidity: 49%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
68°
Feels Like 66°
15
Humidity: 52%
UV Index: 1
Wind: 6 mph
7 PM
Cloudy Weather
64°
Feels Like 63°
19
Humidity: 57%
UV Index: 0
Wind: 6 mph
8 PM
Stormy Weather
63°
Feels Like 57°
51
Humidity: 65%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
61°
Feels Like 57°
47
Humidity: 70%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
57°
Feels Like 55°
40
Humidity: 75%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
55°
Feels Like 55°
34
Humidity: 75%
UV Index: 0
Wind: 5 mph