S
M
T
W
T
F
S
26
95°
74°
27
97°
75°
28
97°
75°
29
96°
74°
30
97°
75°
31
96°
75°
1
97°
74°
2
98°
75°
3
98°
76°
4
97°
75°
5
98°
75°
6
99°
74°
7
98°
75°
8
98°
75°
9
97°
74°
10
98°
74°
11
98°
75°
12
97°
75°
13
98°
74°
14
97°
74°
15
96°
73°
16
97°
73°
17
92°
69°
18
91°
68°
19
90°
67°
20
89°
66°
21
88°
65°
22
89°
66°
23
89°
63°
24
88°
63°
25
87°
64°
26
87°
62°
27
88°
62°
28
87°
63°
29
88°
62°
30
89°
63°
31
92°
65°
1
92°
68°
2
91°
68°
3
92°
67°
4
92°
68°
5
90°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Preston
Preston's August 2026 forecast shows daily high temperatures ranging from 87° to 99°, with overnight lows between 62° and 76°. The average high for August is 94° 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 Preston. See also: September | October | November.
