S
M
T
W
T
F
S
28
82°
70°
29
88°
66°
30
90°
72°
1
91°
68°
2
91°
68°
3
92°
71°
4
89°
72°
5
87°
68°
6
85°
67°
7
84°
67°
8
85°
67°
9
87°
70°
10
86°
67°
11
83°
65°
12
83°
65°
13
82°
63°
14
85°
66°
15
83°
64°
16
84°
63°
17
79°
60°
18
82°
62°
19
84°
67°
20
85°
66°
21
82°
66°
22
82°
67°
23
86°
67°
24
86°
66°
25
85°
66°
26
86°
67°
27
87°
68°
28
86°
67°
29
87°
68°
30
88°
67°
31
85°
67°
1
80°
65°
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 79° to 92°, with overnight lows between 60° and 72°. The average high for July is 85° 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.
