S
M
T
W
T
F
S
26
86°
62°
27
87°
62°
28
86°
67°
29
82°
61°
30
84°
57°
31
88°
53°
1
83°
67°
2
75°
67°
3
82°
67°
4
80°
66°
5
84°
67°
6
84°
65°
7
86°
66°
8
87°
65°
9
88°
66°
10
86°
65°
11
86°
64°
12
84°
64°
13
83°
62°
14
81°
64°
15
82°
60°
16
80°
59°
17
88°
67°
18
88°
66°
19
87°
67°
20
88°
65°
21
86°
65°
22
87°
64°
23
88°
66°
24
88°
66°
25
87°
65°
26
86°
65°
27
85°
64°
28
84°
64°
29
83°
63°
30
84°
64°
31
85°
64°
1
84°
63°
2
81°
58°
3
77°
56°
4
77°
57°
5
78°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Harrisonburg
Harrisonburg's August 2026 forecast shows daily high temperatures ranging from 75° to 88°, with overnight lows between 55° and 67°. The average high for August is 84° with an average low of 64°. 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 Harrisonburg. See also: September | October | November.
