S
M
T
W
T
F
S
28
89°
70°
29
91°
71°
30
N/A
1
92°
68°
2
93°
68°
3
93°
68°
4
93°
68°
5
87°
65°
6
83°
66°
7
82°
65°
8
80°
64°
9
79°
65°
10
80°
64°
11
80°
65°
12
83°
65°
13
82°
66°
14
81°
63°
15
81°
62°
16
82°
62°
17
79°
62°
18
79°
62°
19
84°
68°
20
85°
68°
21
83°
67°
22
80°
67°
23
84°
68°
24
85°
68°
25
85°
67°
26
84°
68°
27
85°
69°
28
86°
68°
29
85°
67°
30
86°
68°
31
85°
68°
1
83°
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 79° to 93°, with overnight lows between 62° and 69°. The average high for July is 84° 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.
