S
M
T
W
T
F
S
26
74°
60°
27
76°
60°
28
75°
58°
29
75°
59°
30
79°
62°
31
77°
56°
1
77°
61°
2
80°
62°
3
77°
55°
4
79°
54°
5
74°
55°
6
74°
55°
7
79°
56°
8
75°
55°
9
77°
60°
10
80°
60°
11
78°
58°
12
79°
59°
13
79°
61°
14
78°
62°
15
75°
60°
16
80°
53°
17
78°
53°
18
72°
54°
19
72°
53°
20
71°
55°
21
72°
52°
22
71°
58°
23
73°
59°
24
77°
60°
25
79°
58°
26
79°
50°
27
75°
50°
28
69°
50°
29
69°
51°
30
70°
55°
31
71°
58°
1
76°
58°
2
76°
55°
3
75°
51°
4
75°
56°
5
74°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Westminster
Westminster's August 2026 forecast shows daily high temperatures ranging from 69° to 80°, with overnight lows between 50° and 62°. The average high for August is 76° with an average low of 56°. 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 Westminster. See also: September | October | November.
