S
M
T
W
T
F
S
31
74°
42°
1
66°
47°
2
75°
46°
3
81°
55°
4
84°
54°
5
87°
59°
6
88°
62°
7
81°
63°
8
74°
58°
9
80°
58°
10
82°
60°
11
92°
70°
12
91°
70°
13
85°
67°
14
88°
65°
15
73°
57°
16
75°
52°
17
78°
56°
18
86°
66°
19
78°
60°
20
77°
55°
21
81°
57°
22
68°
62°
23
78°
58°
24
79°
57°
25
78°
58°
26
79°
59°
27
80°
58°
28
78°
61°
29
80°
64°
30
80°
63°
1
81°
64°
2
84°
58°
3
78°
62°
4
78°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Jefferson Valley-Yorktown
Jefferson Valley-Yorktown's June 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 55° and 64°. The average high for June is 79° with an average low of 60°. 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 Jefferson Valley-Yorktown. See also: July | August | September.