S
M
T
W
T
F
S
26
88°
72°
27
91°
72°
28
93°
72°
29
91°
72°
30
88°
66°
31
91°
64°
1
88°
72°
2
84°
72°
3
86°
72°
4
88°
72°
5
88°
70°
6
88°
72°
7
90°
70°
8
91°
73°
9
93°
72°
10
93°
72°
11
95°
72°
12
92°
70°
13
99°
73°
14
100°
75°
15
96°
72°
16
95°
71°
17
101°
72°
18
95°
71°
19
93°
72°
20
92°
69°
21
94°
71°
22
93°
70°
23
93°
71°
24
90°
68°
25
87°
67°
26
90°
70°
27
90°
70°
28
87°
69°
29
87°
68°
30
89°
69°
31
88°
69°
1
88°
68°
2
87°
69°
3
88°
69°
4
89°
68°
5
89°
68°
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 87° to 101°, with overnight lows between 67° and 75°. The average high for August is 92° with an average low of 70°. 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.
