S
M
T
W
T
F
S
26
75°
59°
27
77°
57°
28
75°
59°
29
78°
57°
30
79°
58°
31
79°
54°
1
79°
57°
2
78°
59°
3
80°
57°
4
75°
54°
5
76°
57°
6
75°
58°
7
77°
58°
8
80°
57°
9
77°
52°
10
75°
58°
11
79°
52°
12
79°
51°
13
73°
58°
14
78°
59°
15
79°
56°
16
77°
51°
17
76°
51°
18
72°
49°
19
72°
52°
20
75°
54°
21
72°
50°
22
71°
54°
23
75°
55°
24
76°
53°
25
75°
49°
26
72°
47°
27
68°
47°
28
69°
48°
29
68°
49°
30
69°
52°
31
73°
55°
1
75°
55°
2
75°
54°
3
74°
51°
4
74°
53°
5
73°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Hillsborough
Hillsborough's August 2026 forecast shows daily high temperatures ranging from 68° to 80°, with overnight lows between 46° and 59°. The average high for August is 75° 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 August weather will actually feel in Hillsborough. See also: September | October | November.
