S
M
T
W
T
F
S
26
77°
59°
27
78°
60°
28
78°
64°
29
80°
65°
30
82°
66°
31
83°
67°
1
85°
66°
2
86°
67°
3
86°
67°
4
85°
60°
5
81°
59°
6
77°
58°
7
76°
58°
8
77°
59°
9
78°
59°
10
79°
60°
11
81°
64°
12
80°
65°
13
83°
66°
14
82°
67°
15
85°
65°
16
85°
60°
17
79°
59°
18
76°
58°
19
77°
58°
20
77°
60°
21
78°
62°
22
76°
59°
23
77°
61°
24
80°
64°
25
79°
58°
26
81°
58°
27
76°
59°
28
76°
66°
29
83°
65°
30
82°
66°
31
81°
63°
1
80°
64°
2
80°
62°
3
81°
60°
4
76°
61°
5
76°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Harrow
Harrow's August 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 58° and 67°. The average high for August is 80° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Harrow. See also: September | October | November.
