S
M
T
W
T
F
S
26
79°
62°
27
80°
62°
28
79°
63°
29
77°
62°
30
74°
62°
31
79°
61°
1
80°
63°
2
79°
62°
3
82°
62°
4
81°
62°
5
80°
61°
6
79°
60°
7
74°
61°
8
76°
57°
9
74°
56°
10
75°
54°
11
74°
60°
12
78°
61°
13
80°
60°
14
79°
54°
15
74°
53°
16
73°
54°
17
75°
59°
18
72°
53°
19
74°
53°
20
74°
52°
21
75°
53°
22
77°
58°
23
78°
53°
24
78°
52°
25
76°
52°
26
77°
57°
27
73°
55°
28
71°
54°
29
76°
59°
30
77°
55°
31
76°
49°
1
72°
48°
2
69°
50°
3
69°
49°
4
70°
49°
5
68°
48°
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 68° to 82°, with overnight lows between 48° and 63°. 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.
