S
M
T
W
T
F
S
31
79°
65°
1
89°
62°
2
81°
57°
3
81°
61°
4
84°
67°
5
80°
68°
6
81°
69°
7
83°
67°
8
82°
68°
9
85°
66°
10
84°
67°
11
84°
66°
12
82°
65°
13
84°
66°
14
83°
63°
15
86°
61°
16
77°
60°
17
77°
60°
18
78°
66°
19
78°
67°
20
80°
68°
21
82°
68°
22
81°
67°
23
81°
66°
24
84°
68°
25
85°
69°
26
87°
69°
27
85°
68°
28
84°
69°
29
82°
69°
30
83°
68°
1
82°
70°
2
83°
70°
3
87°
69°
4
83°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Jamestown
Jamestown's June 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 57° and 70°. The average high for June is 83° 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 June weather will actually feel in Jamestown. See also: July | August | September.
