S
M
T
W
T
F
S
28
86°
70°
29
91°
76°
30
91°
75°
1
92°
75°
2
94°
74°
3
93°
75°
4
89°
70°
5
84°
69°
6
84°
68°
7
86°
66°
8
87°
65°
9
89°
69°
10
85°
66°
11
85°
65°
12
85°
62°
13
87°
65°
14
89°
68°
15
88°
66°
16
89°
69°
17
88°
66°
18
87°
63°
19
83°
62°
20
84°
61°
21
82°
62°
22
81°
62°
23
83°
60°
24
87°
68°
25
88°
68°
26
88°
67°
27
87°
67°
28
86°
66°
29
85°
66°
30
81°
65°
31
80°
65°
1
79°
64°
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 89°, with overnight lows between 60° and 69°. The average high for July is 85° 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 July weather will actually feel in Williamsport. See also: August | September | October.
