S
M
T
W
T
F
S
28
82°
54°
29
82°
55°
30
83°
57°
1
88°
54°
2
91°
53°
3
90°
54°
4
91°
52°
5
91°
53°
6
88°
52°
7
85°
53°
8
86°
56°
9
92°
56°
10
92°
57°
11
91°
58°
12
89°
56°
13
84°
53°
14
82°
49°
15
81°
51°
16
82°
53°
17
84°
56°
18
85°
55°
19
82°
57°
20
84°
54°
21
85°
55°
22
83°
56°
23
90°
54°
24
84°
55°
25
91°
56°
26
90°
56°
27
Hist. Avg.
88°
58°
28
Hist. Avg.
88°
58°
29
Hist. Avg.
88°
58°
30
Hist. Avg.
88°
58°
31
Hist. Avg.
88°
58°
1
Hist. Avg.
88°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Boulder
Boulder's July 2026 forecast shows daily high temperatures ranging from 81° to 92°, with overnight lows between 49° and 58°. The average high for July is 86° with an average low of 54°. 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.
