S
M
T
W
T
F
S
26
75°
64°
27
75°
63°
28
76°
64°
29
80°
64°
30
76°
63°
31
78°
64°
1
79°
65°
2
80°
64°
3
77°
64°
4
80°
63°
5
73°
61°
6
77°
63°
7
80°
63°
8
74°
58°
9
72°
56°
10
72°
59°
11
73°
62°
12
74°
60°
13
76°
64°
14
78°
64°
15
79°
62°
16
73°
60°
17
72°
55°
18
72°
55°
19
73°
62°
20
74°
61°
21
75°
58°
22
76°
55°
23
74°
54°
24
71°
53°
25
71°
54°
26
74°
53°
27
72°
54°
28
74°
56°
29
76°
59°
30
77°
59°
31
77°
60°
1
76°
60°
2
77°
57°
3
76°
51°
4
68°
48°
5
67°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Napanee
Napanee's August 2026 forecast shows daily high temperatures ranging from 67° to 80°, with overnight lows between 48° and 65°. The average high for August is 75° 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 August weather will actually feel in Napanee. See also: September | October | November.
