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°
65°
9
87°
70°
10
86°
70°
11
84°
69°
12
81°
67°
13
80°
63°
14
79°
64°
15
80°
63°
16
78°
57°
17
76°
59°
18
76°
60°
19
81°
58°
20
80°
58°
21
79°
57°
22
86°
63°
23
87°
64°
24
78°
55°
25
78°
56°
26
80°
59°
27
83°
62°
28
85°
61°
29
79°
57°
30
77°
55°
31
76°
59°
1
77°
61°
2
79°
61°
3
84°
62°
4
82°
61°
5
81°
60°
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 76° to 87°, with overnight lows between 55° and 70°. The average high for August is 81° with an average low of 61°. 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.
