S
M
T
W
T
F
S
28
78°
62°
29
86°
60°
30
79°
63°
1
80°
69°
2
89°
70°
3
93°
73°
4
93°
68°
5
82°
63°
6
73°
65°
7
70°
62°
8
74°
63°
9
76°
66°
10
77°
66°
11
80°
66°
12
79°
65°
13
79°
65°
14
78°
64°
15
77°
65°
16
74°
62°
17
75°
67°
18
75°
67°
19
76°
66°
20
76°
68°
21
75°
68°
22
75°
67°
23
76°
68°
24
76°
68°
25
77°
67°
26
77°
68°
27
78°
68°
28
80°
67°
29
79°
68°
30
80°
69°
31
81°
69°
1
80°
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 70° to 93°, with overnight lows between 62° and 73°. The average high for July is 78° 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.
