S
M
T
W
T
F
S
26
85°
69°
27
83°
68°
28
81°
68°
29
82°
67°
30
83°
69°
31
85°
69°
1
86°
68°
2
85°
69°
3
89°
68°
4
84°
64°
5
85°
66°
6
84°
64°
7
83°
61°
8
84°
62°
9
83°
61°
10
83°
62°
11
86°
68°
12
89°
69°
13
89°
67°
14
88°
64°
15
84°
67°
16
83°
68°
17
85°
61°
18
83°
63°
19
83°
61°
20
84°
61°
21
84°
66°
22
87°
67°
23
88°
64°
24
89°
65°
25
88°
65°
26
89°
66°
27
88°
65°
28
87°
66°
29
87°
66°
30
85°
61°
31
84°
57°
1
80°
57°
2
80°
58°
3
81°
58°
4
80°
59°
5
85°
63°
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 80° to 89°, with overnight lows between 57° and 69°. The average high for August is 85° with an average low of 64°. 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.
