S
M
T
W
T
F
S
28
80°
59°
29
84°
63°
30
88°
67°
1
90°
72°
2
89°
71°
3
88°
72°
4
81°
67°
5
76°
66°
6
74°
66°
7
78°
66°
8
78°
65°
9
82°
61°
10
80°
60°
11
80°
54°
12
82°
59°
13
86°
63°
14
90°
68°
15
87°
64°
16
83°
63°
17
82°
64°
18
78°
61°
19
77°
59°
20
76°
61°
21
78°
62°
22
81°
59°
23
80°
57°
24
84°
62°
25
83°
62°
26
83°
63°
27
84°
62°
28
82°
62°
29
80°
61°
30
76°
61°
31
76°
58°
1
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Jamestown
Jamestown's July 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 54° and 68°. The average high for July is 81° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Jamestown. See also: August | September | October.
