S
M
T
W
T
F
S
28
92°
57°
29
86°
56°
30
88°
59°
1
92°
63°
2
94°
64°
3
94°
65°
4
95°
64°
5
88°
56°
6
80°
53°
7
81°
52°
8
83°
54°
9
90°
59°
10
90°
58°
11
89°
59°
12
83°
57°
13
90°
58°
14
90°
58°
15
87°
61°
16
84°
57°
17
86°
56°
18
84°
56°
19
87°
61°
20
87°
60°
21
88°
61°
22
84°
60°
23
84°
58°
24
87°
58°
25
86°
59°
26
89°
61°
27
83°
57°
28
85°
57°
29
87°
58°
30
86°
55°
31
83°
55°
1
83°
57°
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 80° to 95°, with overnight lows between 52° and 65°. The average high for July is 87° 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.
