S
M
T
W
T
F
S
26
79°
63°
27
81°
59°
28
84°
64°
29
93°
63°
30
82°
63°
31
N/A
1
80°
55°
2
85°
60°
3
90°
63°
4
84°
63°
5
82°
60°
6
77°
61°
7
75°
57°
8
74°
56°
9
76°
57°
10
79°
60°
11
80°
59°
12
79°
58°
13
74°
55°
14
76°
57°
15
76°
57°
16
75°
56°
17
75°
57°
18
74°
56°
19
74°
56°
20
73°
55°
21
73°
54°
22
71°
52°
23
71°
55°
24
70°
54°
25
72°
54°
26
71°
55°
27
72°
54°
28
72°
52°
29
68°
54°
30
68°
53°
31
69°
49°
1
66°
48°
2
66°
51°
3
67°
50°
4
66°
47°
5
65°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Slough
Slough's August 2026 forecast shows daily high temperatures ranging from 65° to 90°, with overnight lows between 47° and 63°. The average high for August is 74° with an average low of 55°. 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 Slough. See also: September | October | November.
