S
M
T
W
T
F
S
28
88°
58°
29
89°
54°
30
89°
59°
1
90°
58°
2
90°
59°
3
88°
59°
4
87°
58°
5
86°
59°
6
86°
59°
7
89°
56°
8
90°
60°
9
90°
60°
10
89°
61°
11
88°
60°
12
90°
58°
13
89°
57°
14
84°
55°
15
90°
58°
16
91°
61°
17
91°
61°
18
90°
60°
19
84°
60°
20
86°
57°
21
86°
60°
22
92°
55°
23
86°
53°
24
83°
56°
25
85°
54°
26
86°
53°
27
84°
55°
28
85°
58°
29
89°
57°
30
90°
56°
31
86°
55°
1
86°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Boulder
Boulder's July 2026 forecast shows daily high temperatures ranging from 83° to 92°, with overnight lows between 53° and 61°. The average high for July is 88° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Boulder. See also: August | September | October.
