S
M
T
W
T
F
S
28
94°
74°
29
92°
71°
30
92°
74°
1
92°
70°
2
95°
69°
3
97°
70°
4
99°
71°
5
100°
74°
6
97°
73°
7
96°
73°
8
100°
77°
9
99°
78°
10
99°
75°
11
97°
74°
12
92°
72°
13
83°
72°
14
86°
73°
15
92°
74°
16
96°
75°
17
99°
75°
18
94°
72°
19
93°
73°
20
92°
71°
21
90°
72°
22
89°
72°
23
87°
71°
24
88°
71°
25
89°
75°
26
90°
70°
27
93°
75°
28
93°
75°
29
94°
74°
30
91°
75°
31
91°
75°
1
93°
74°
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 83° to 99°, with overnight lows between 70° and 75°. The average high for July is 91° with an average low of 73°. 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.
