S
M
T
W
T
F
S
26
83°
66°
27
84°
67°
28
87°
67°
29
89°
66°
30
90°
68°
31
90°
67°
1
89°
67°
2
87°
66°
3
87°
60°
4
83°
59°
5
80°
60°
6
81°
59°
7
83°
61°
8
87°
66°
9
88°
67°
10
89°
65°
11
87°
65°
12
81°
62°
13
86°
66°
14
84°
66°
15
Hist. Avg.
83°
62°
16
Hist. Avg.
83°
61°
17
Hist. Avg.
83°
61°
18
Hist. Avg.
83°
61°
19
Hist. Avg.
82°
61°
20
Hist. Avg.
82°
61°
21
Hist. Avg.
82°
61°
22
Hist. Avg.
82°
61°
23
Hist. Avg.
82°
60°
24
Hist. Avg.
82°
60°
25
Hist. Avg.
82°
60°
26
Hist. Avg.
81°
60°
27
Hist. Avg.
81°
60°
28
Hist. Avg.
81°
60°
29
Hist. Avg.
81°
59°
30
Hist. Avg.
80°
59°
31
Hist. Avg.
80°
59°
1
Hist. Avg.
80°
59°
2
Hist. Avg.
80°
58°
3
Hist. Avg.
80°
58°
4
Hist. Avg.
79°
58°
5
Hist. Avg.
79°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Williamsport
Williamsport's August 2026 forecast shows daily high temperatures ranging from 80° to 90°, with overnight lows between 59° and 68°. The average high for August is 86° 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 August weather will actually feel in Williamsport. See also: September | October | November.
