S
M
T
W
T
F
S
26
90°
59°
27
92°
59°
28
90°
58°
29
89°
57°
30
92°
59°
31
93°
57°
1
89°
55°
2
84°
56°
3
86°
55°
4
87°
57°
5
86°
55°
6
86°
57°
7
Hist. Avg.
90°
55°
8
Hist. Avg.
90°
55°
9
Hist. Avg.
90°
55°
10
Hist. Avg.
89°
55°
11
Hist. Avg.
89°
54°
12
Hist. Avg.
89°
54°
13
Hist. Avg.
89°
54°
14
Hist. Avg.
88°
54°
15
Hist. Avg.
88°
54°
16
Hist. Avg.
88°
53°
17
Hist. Avg.
88°
53°
18
Hist. Avg.
87°
53°
19
Hist. Avg.
87°
52°
20
Hist. Avg.
87°
52°
21
Hist. Avg.
86°
52°
22
Hist. Avg.
86°
52°
23
Hist. Avg.
86°
51°
24
Hist. Avg.
86°
51°
25
Hist. Avg.
85°
51°
26
Hist. Avg.
85°
51°
27
Hist. Avg.
85°
50°
28
Hist. Avg.
84°
50°
29
Hist. Avg.
84°
50°
30
Hist. Avg.
84°
50°
31
Hist. Avg.
84°
49°
1
Hist. Avg.
83°
49°
2
Hist. Avg.
83°
49°
3
Hist. Avg.
82°
48°
4
Hist. Avg.
82°
48°
5
Hist. Avg.
82°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Preston
Preston's August 2026 forecast shows daily high temperatures ranging from 84° to 93°, with overnight lows between 55° and 59°. The average high for August is 89° with an average low of 57°. 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.