S
M
T
W
T
F
S
26
79°
64°
27
81°
66°
28
79°
66°
29
79°
64°
30
80°
62°
31
85°
60°
1
88°
66°
2
80°
64°
3
77°
61°
4
83°
58°
5
88°
63°
6
85°
71°
7
80°
70°
8
82°
65°
9
81°
66°
10
79°
67°
11
81°
67°
12
76°
62°
13
82°
65°
14
83°
63°
15
80°
62°
16
84°
62°
17
80°
65°
18
79°
60°
19
78°
63°
20
76°
60°
21
79°
55°
22
83°
62°
23
69°
55°
24
64°
54°
25
72°
55°
26
75°
60°
27
76°
62°
28
74°
61°
29
73°
59°
30
71°
57°
31
72°
57°
1
72°
58°
2
73°
56°
3
72°
58°
4
72°
61°
5
71°
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 64° to 83°, with overnight lows between 54° and 62°. The average high for August is 73° 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.
