S
M
T
W
T
F
S
28
78°
55°
29
81°
60°
30
78°
63°
1
83°
66°
2
85°
64°
3
82°
60°
4
81°
61°
5
77°
58°
6
80°
59°
7
80°
60°
8
79°
56°
9
79°
59°
10
79°
60°
11
75°
60°
12
77°
59°
13
77°
60°
14
75°
60°
15
78°
59°
16
80°
61°
17
79°
61°
18
81°
60°
19
81°
61°
20
79°
61°
21
78°
60°
22
76°
60°
23
80°
62°
24
81°
61°
25
80°
57°
26
73°
55°
27
75°
57°
28
74°
57°
29
77°
59°
30
74°
53°
31
72°
52°
1
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lowell
Lowell's July 2026 forecast shows daily high temperatures ranging from 72° to 85°, with overnight lows between 52° and 66°. The average high for July is 78° with an average low of 59°. 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 Lowell. See also: August | September | October.
