S
M
T
W
T
F
S
28
89°
70°
29
91°
71°
30
93°
70°
1
94°
69°
2
93°
69°
3
93°
68°
4
89°
67°
5
90°
69°
6
90°
70°
7
89°
68°
8
86°
68°
9
89°
71°
10
82°
70°
11
87°
71°
12
84°
70°
13
84°
70°
14
89°
68°
15
90°
69°
16
88°
72°
17
82°
71°
18
82°
69°
19
83°
68°
20
87°
68°
21
83°
65°
22
80°
62°
23
76°
63°
24
84°
64°
25
80°
64°
26
83°
67°
27
82°
66°
28
86°
69°
29
84°
66°
30
84°
69°
31
85°
68°
1
83°
68°
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 62° and 72°. The average high for July is 84° with an average low of 67°. 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.
