S
M
T
W
T
F
S
26
66°
55°
27
65°
56°
28
65°
56°
29
66°
57°
30
66°
56°
31
67°
57°
1
67°
56°
2
65°
56°
3
65°
57°
4
66°
56°
5
67°
56°
6
68°
57°
7
67°
56°
8
66°
56°
9
65°
55°
10
65°
57°
11
66°
56°
12
68°
57°
13
67°
57°
14
68°
56°
15
68°
57°
16
67°
56°
17
66°
56°
18
66°
55°
19
67°
56°
20
67°
56°
21
66°
55°
22
64°
55°
23
65°
54°
24
64°
53°
25
64°
52°
26
63°
52°
27
63°
53°
28
64°
52°
29
63°
53°
30
63°
50°
31
64°
50°
1
63°
51°
2
63°
53°
3
64°
49°
4
65°
49°
5
62°
51°
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 62° to 68°, with overnight lows between 49° and 57°. The average high for August is 65° with an average low of 55°. 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.
