S
M
T
W
T
F
S
26
88°
68°
27
88°
67°
28
87°
68°
29
88°
68°
30
89°
69°
31
89°
69°
1
88°
68°
2
84°
67°
3
82°
64°
4
80°
66°
5
81°
64°
6
81°
62°
7
82°
65°
8
84°
66°
9
86°
67°
10
88°
67°
11
87°
66°
12
84°
65°
13
87°
66°
14
88°
66°
15
84°
67°
16
82°
67°
17
85°
66°
18
88°
67°
19
87°
66°
20
87°
60°
21
86°
58°
22
81°
58°
23
81°
59°
24
82°
60°
25
82°
59°
26
83°
64°
27
84°
59°
28
82°
58°
29
81°
58°
30
80°
57°
31
79°
56°
1
79°
57°
2
80°
58°
3
77°
61°
4
79°
57°
5
81°
56°
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 89°, with overnight lows between 56° and 69°. The average high for August is 84° 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.
