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
82°
68°
10
81°
68°
11
79°
68°
12
79°
65°
13
78°
62°
14
80°
63°
15
81°
64°
16
83°
65°
17
82°
63°
18
82°
65°
19
81°
64°
20
80°
65°
21
83°
65°
22
82°
66°
23
83°
67°
24
85°
68°
25
86°
68°
26
84°
67°
27
84°
67°
28
85°
68°
29
85°
67°
30
84°
67°
31
81°
66°
1
79°
67°
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 78° to 86°, with overnight lows between 62° and 68°. The average high for July is 82° with an average low of 66°. 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.
