S
M
T
W
T
F
S
28
77°
59°
29
72°
54°
30
77°
61°
1
77°
61°
2
77°
57°
3
81°
52°
4
82°
59°
5
N/A
6
92°
61°
7
90°
65°
8
92°
68°
9
96°
70°
10
93°
64°
11
90°
64°
12
86°
64°
13
84°
61°
14
85°
62°
15
84°
65°
16
83°
63°
17
82°
61°
18
75°
57°
19
74°
56°
20
71°
52°
21
74°
56°
22
73°
53°
23
73°
52°
24
74°
56°
25
74°
54°
26
73°
54°
27
73°
53°
28
75°
57°
29
74°
57°
30
73°
56°
31
72°
53°
1
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Harrow
Harrow's July 2026 forecast shows daily high temperatures ranging from 71° to 96°, with overnight lows between 52° and 70°. The average high for July is 80° 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 Harrow. See also: August | September | October.