S
M
T
W
T
F
S
26
66°
59°
27
66°
57°
28
73°
65°
29
72°
62°
30
66°
57°
31
66°
51°
1
66°
54°
2
70°
52°
3
84°
60°
4
73°
63°
5
64°
57°
6
64°
56°
7
68°
53°
8
70°
50°
9
70°
56°
10
66°
54°
11
82°
52°
12
84°
61°
13
82°
62°
14
69°
56°
15
68°
53°
16
65°
55°
17
66°
61°
18
66°
58°
19
65°
54°
20
67°
53°
21
66°
53°
22
65°
51°
23
64°
52°
24
66°
51°
25
65°
53°
26
63°
50°
27
64°
51°
28
63°
50°
29
66°
53°
30
63°
50°
31
63°
53°
1
64°
52°
2
62°
51°
3
62°
51°
4
66°
55°
5
67°
53°
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 62° to 82°, with overnight lows between 50° and 62°. The average high for August is 66° with an average low of 53°. 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.
