S
M
T
W
T
F
S
28
80°
59°
29
84°
63°
30
88°
67°
1
91°
71°
2
93°
72°
3
91°
69°
4
85°
65°
5
80°
65°
6
84°
62°
7
85°
63°
8
84°
62°
9
82°
61°
10
83°
62°
11
82°
63°
12
84°
64°
13
81°
63°
14
80°
57°
15
74°
55°
16
75°
55°
17
75°
57°
18
76°
58°
19
79°
61°
20
80°
61°
21
76°
60°
22
79°
61°
23
79°
61°
24
78°
60°
25
77°
60°
26
79°
61°
27
82°
61°
28
83°
62°
29
82°
61°
30
83°
62°
31
80°
61°
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 74° to 93°, with overnight lows between 55° and 72°. The average high for July is 81° with an average low of 62°. 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.
