S
M
T
W
T
F
S
28
95°
78°
29
96°
79°
30
94°
77°
1
95°
75°
2
92°
75°
3
90°
77°
4
94°
74°
5
92°
72°
6
91°
74°
7
95°
75°
8
97°
74°
9
94°
73°
10
94°
75°
11
95°
75°
12
97°
74°
13
98°
75°
14
93°
72°
15
96°
75°
16
95°
76°
17
97°
76°
18
97°
77°
19
96°
77°
20
97°
76°
21
97°
76°
22
96°
77°
23
98°
77°
24
98°
76°
25
97°
77°
26
98°
77°
27
98°
76°
28
97°
77°
29
97°
76°
30
98°
77°
31
99°
77°
1
98°
76°
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 90° to 99°, with overnight lows between 72° and 77°. The average high for July is 96° with an average low of 76°. 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.
