S
M
T
W
T
F
S
26
75°
64°
27
81°
59°
28
84°
66°
29
88°
59°
30
81°
59°
31
79°
54°
1
77°
50°
2
82°
55°
3
90°
60°
4
78°
59°
5
73°
51°
6
71°
48°
7
71°
53°
8
73°
53°
9
73°
56°
10
76°
58°
11
77°
58°
12
77°
60°
13
77°
58°
14
75°
56°
15
70°
58°
16
71°
57°
17
68°
57°
18
67°
55°
19
66°
52°
20
66°
52°
21
65°
51°
22
66°
51°
23
66°
52°
24
69°
56°
25
71°
57°
26
70°
55°
27
70°
53°
28
69°
56°
29
70°
54°
30
71°
55°
31
71°
56°
1
69°
55°
2
67°
52°
3
65°
51°
4
65°
51°
5
66°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Swindon
Swindon's August 2026 forecast shows daily high temperatures ranging from 65° to 90°, with overnight lows between 48° and 60°. The average high for August is 71° 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 Swindon. See also: September | October | November.
