S
M
T
W
T
F
S
26
99°
64°
27
87°
66°
28
92°
65°
29
95°
69°
30
90°
67°
31
81°
62°
1
86°
57°
2
90°
65°
3
72°
55°
4
72°
52°
5
83°
46°
6
88°
52°
7
75°
52°
8
85°
48°
9
76°
53°
10
81°
48°
11
81°
58°
12
80°
59°
13
80°
59°
14
78°
58°
15
70°
59°
16
77°
55°
17
83°
57°
18
74°
50°
19
82°
51°
20
84°
56°
21
80°
54°
22
76°
48°
23
83°
47°
24
86°
62°
25
80°
60°
26
78°
52°
27
78°
46°
28
78°
47°
29
81°
62°
30
78°
63°
31
83°
54°
1
77°
51°
2
83°
58°
3
78°
59°
4
85°
53°
5
84°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Jamestown
Jamestown's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. 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 Jamestown. See also: September | October | November.
