S
M
T
W
T
F
S
26
85°
62°
27
88°
63°
28
84°
66°
29
81°
66°
30
82°
67°
31
88°
69°
1
87°
65°
2
85°
73°
3
88°
73°
4
87°
63°
5
84°
71°
6
92°
71°
7
90°
71°
8
86°
70°
9
91°
70°
10
88°
67°
11
87°
69°
12
86°
71°
13
86°
70°
14
87°
69°
15
87°
65°
16
76°
66°
17
89°
68°
18
84°
61°
19
87°
67°
20
80°
63°
21
79°
66°
22
79°
64°
23
79°
61°
24
78°
62°
25
82°
61°
26
82°
61°
27
83°
62°
28
81°
60°
29
79°
60°
30
80°
61°
31
78°
57°
1
78°
58°
2
79°
57°
3
78°
62°
4
78°
60°
5
79°
58°
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 78° to 89°, with overnight lows between 57° and 68°. 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.
