S
M
T
W
T
F
S
26
87°
57°
27
85°
62°
28
76°
60°
29
75°
62°
30
81°
62°
31
83°
60°
1
83°
61°
2
77°
67°
3
75°
58°
4
82°
57°
5
86°
63°
6
85°
65°
7
79°
64°
8
84°
64°
9
83°
62°
10
81°
58°
11
76°
59°
12
76°
56°
13
77°
58°
14
78°
56°
15
74°
59°
16
72°
55°
17
78°
59°
18
72°
56°
19
72°
56°
20
75°
56°
21
71°
54°
22
72°
60°
23
77°
61°
24
75°
60°
25
73°
59°
26
77°
59°
27
77°
58°
28
70°
59°
29
76°
58°
30
77°
59°
31
77°
58°
1
70°
56°
2
67°
55°
3
68°
53°
4
68°
51°
5
72°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lancaster
Lancaster's August 2026 forecast shows daily high temperatures ranging from 67° to 86°, with overnight lows between 51° and 67°. The average high for August is 76° with an average low of 58°. 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 Lancaster. See also: September | October | November.
