S
M
T
W
T
F
S
26
72°
59°
27
77°
57°
28
77°
61°
29
82°
57°
30
73°
55°
31
73°
45°
1
75°
45°
2
77°
45°
3
84°
48°
4
77°
65°
5
72°
57°
6
73°
46°
7
77°
45°
8
73°
43°
9
86°
52°
10
N/A
11
80°
54°
12
88°
59°
13
92°
63°
14
81°
55°
15
78°
53°
16
75°
57°
17
75°
57°
18
76°
56°
19
76°
58°
20
74°
56°
21
74°
58°
22
72°
55°
23
73°
56°
24
67°
54°
25
68°
53°
26
66°
51°
27
65°
51°
28
65°
52°
29
66°
54°
30
65°
56°
31
65°
54°
1
66°
53°
2
68°
56°
3
69°
56°
4
68°
55°
5
69°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Exeter
Exeter's August 2026 forecast shows daily high temperatures ranging from 65° to 92°, with overnight lows between 51° and 63°. The average high for August is 72° 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 Exeter. See also: September | October | November.