S
M
T
W
T
F
S
26
85°
66°
27
83°
65°
28
80°
62°
29
80°
64°
30
82°
66°
31
86°
66°
1
83°
65°
2
82°
63°
3
88°
65°
4
87°
62°
5
81°
61°
6
83°
60°
7
81°
58°
8
80°
59°
9
80°
57°
10
81°
57°
11
83°
64°
12
87°
65°
13
86°
60°
14
86°
57°
15
81°
59°
16
81°
63°
17
82°
57°
18
80°
57°
19
81°
58°
20
82°
56°
21
84°
62°
22
87°
62°
23
87°
61°
24
86°
62°
25
87°
61°
26
88°
62°
27
86°
60°
28
85°
62°
29
86°
61°
30
85°
54°
31
81°
52°
1
78°
51°
2
78°
53°
3
79°
53°
4
79°
54°
5
77°
54°
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 77° to 88°, with overnight lows between 51° and 66°. The average high for August is 83° with an average low of 60°. 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.
