S
M
T
W
T
F
S
31
86°
68°
1
80°
64°
2
84°
56°
3
81°
58°
4
85°
59°
5
85°
63°
6
87°
66°
7
86°
70°
8
88°
66°
9
84°
66°
10
83°
67°
11
84°
66°
12
86°
67°
13
84°
65°
14
85°
62°
15
84°
67°
16
85°
66°
17
83°
66°
18
81°
67°
19
81°
67°
20
82°
66°
21
81°
67°
22
84°
67°
23
83°
66°
24
83°
63°
25
84°
65°
26
84°
67°
27
85°
67°
28
84°
68°
29
83°
68°
30
84°
63°
1
83°
62°
2
82°
68°
3
84°
69°
4
84°
67°
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 80° to 88°, with overnight lows between 56° and 70°. The average high for June is 84° with an average low of 65°. 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.
