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
89°
71°
10
82°
70°
11
87°
71°
12
82°
70°
13
83°
66°
14
88°
67°
15
89°
70°
16
91°
69°
17
91°
68°
18
86°
69°
19
86°
68°
20
87°
66°
21
81°
65°
22
82°
64°
23
83°
65°
24
84°
67°
25
83°
67°
26
82°
66°
27
87°
69°
28
86°
69°
29
84°
66°
30
84°
69°
31
85°
68°
1
83°
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 81° to 91°, with overnight lows between 64° and 70°. The average high for July is 85° 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.
