S
M
T
W
T
F
S
28
78°
62°
29
86°
60°
30
79°
63°
1
80°
69°
2
92°
69°
3
94°
72°
4
92°
71°
5
78°
68°
6
69°
61°
7
68°
63°
8
80°
62°
9
81°
67°
10
86°
69°
11
82°
61°
12
80°
60°
13
74°
67°
14
83°
72°
15
90°
66°
16
84°
65°
17
84°
64°
18
78°
68°
19
77°
63°
20
79°
68°
21
78°
66°
22
76°
65°
23
76°
64°
24
79°
66°
25
79°
65°
26
78°
66°
27
76°
67°
28
77°
68°
29
76°
67°
30
76°
66°
31
77°
68°
1
76°
66°
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 74° to 90°, with overnight lows between 63° and 72°. The average high for July is 79° 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.
