S
M
T
W
T
F
S
28
90°
56°
29
88°
58°
30
88°
58°
1
89°
57°
2
92°
61°
3
90°
55°
4
92°
57°
5
92°
59°
6
82°
51°
7
84°
50°
8
86°
53°
9
92°
58°
10
93°
56°
11
91°
57°
12
86°
55°
13
93°
56°
14
93°
57°
15
90°
59°
16
87°
56°
17
89°
55°
18
86°
54°
19
90°
59°
20
90°
58°
21
91°
60°
22
87°
58°
23
87°
56°
24
90°
56°
25
89°
57°
26
91°
60°
27
86°
55°
28
87°
55°
29
90°
56°
30
89°
53°
31
85°
53°
1
86°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Longmont
Longmont's July 2026 forecast shows daily high temperatures ranging from 82° to 93°, with overnight lows between 50° and 61°. The average high for July is 89° with an average low of 56°. 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 Longmont. See also: August | September | October.
