S
M
T
W
T
F
S
26
79°
62°
27
84°
61°
28
83°
67°
29
79°
58°
30
83°
53°
31
85°
59°
1
76°
68°
2
80°
69°
3
81°
59°
4
83°
54°
5
88°
67°
6
86°
65°
7
86°
69°
8
87°
69°
9
86°
65°
10
85°
68°
11
77°
66°
12
75°
63°
13
85°
60°
14
82°
68°
15
84°
67°
16
73°
67°
17
86°
65°
18
82°
62°
19
85°
65°
20
79°
62°
21
76°
61°
22
75°
63°
23
76°
62°
24
79°
65°
25
85°
66°
26
84°
66°
27
82°
60°
28
80°
62°
29
77°
60°
30
83°
65°
31
76°
58°
1
76°
58°
2
77°
59°
3
76°
63°
4
76°
60°
5
75°
59°
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 73° to 86°, with overnight lows between 58° and 67°. The average high for August is 79° with an average low of 63°. 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.
