S
M
T
W
T
F
S
31
73°
42°
1
69°
44°
2
75°
43°
3
80°
46°
4
84°
50°
5
87°
54°
6
83°
65°
7
76°
59°
8
83°
51°
9
90°
63°
10
85°
69°
11
91°
68°
12
84°
61°
13
83°
58°
14
77°
58°
15
60°
48°
16
71°
55°
17
72°
61°
18
76°
55°
19
69°
54°
20
66°
49°
21
67°
51°
22
67°
54°
23
72°
55°
24
73°
56°
25
68°
54°
26
72°
56°
27
74°
55°
28
73°
56°
29
70°
52°
30
70°
53°
1
71°
52°
2
72°
59°
3
72°
56°
4
73°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Letchworth State Park
Letchworth State Park's June 2026 forecast shows daily high temperatures ranging from 60° to 76°, with overnight lows between 48° and 61°. The average high for June is 70° with an average low of 54°. 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 Letchworth State Park. See also: July | August | September.