S
M
T
W
T
F
S
28
84°
63°
29
89°
63°
30
91°
65°
1
99°
72°
2
100°
72°
3
99°
71°
4
91°
71°
5
80°
70°
6
74°
65°
7
80°
65°
8
86°
64°
9
88°
68°
10
87°
68°
11
86°
65°
12
84°
64°
13
82°
64°
14
84°
66°
15
86°
66°
16
87°
63°
17
82°
61°
18
84°
61°
19
87°
67°
20
87°
67°
21
81°
66°
22
84°
67°
23
86°
67°
24
85°
66°
25
84°
65°
26
87°
67°
27
88°
67°
28
88°
66°
29
87°
67°
30
88°
68°
31
87°
68°
1
86°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Williamsport
Williamsport's July 2026 forecast shows daily high temperatures ranging from 74° to 99°, with overnight lows between 61° and 71°. The average high for July is 86° 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 July weather will actually feel in Williamsport. See also: August | September | October.
