S
M
T
W
T
F
S
31
79°
42°
1
75°
45°
2
77°
46°
3
84°
46°
4
89°
52°
5
91°
60°
6
89°
64°
7
85°
56°
8
83°
55°
9
85°
58°
10
87°
62°
11
89°
63°
12
90°
65°
13
90°
66°
14
89°
62°
15
86°
63°
16
85°
64°
17
84°
59°
18
79°
63°
19
83°
63°
20
80°
62°
21
85°
57°
22
77°
56°
23
77°
57°
24
79°
64°
25
86°
66°
26
86°
60°
27
81°
58°
28
79°
58°
29
79°
59°
30
80°
58°
1
81°
60°
2
80°
59°
3
83°
59°
4
86°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Williamsport
Williamsport's June 2026 forecast shows daily high temperatures ranging from 77° to 91°, with overnight lows between 52° and 66°. The average high for June is 84° 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 Williamsport. See also: July | August | September.
