S
M
T
W
T
F
S
26
78°
61°
27
80°
62°
28
79°
59°
29
79°
60°
30
83°
61°
31
80°
56°
1
80°
62°
2
83°
63°
3
80°
56°
4
83°
55°
5
78°
56°
6
78°
55°
7
83°
55°
8
79°
56°
9
81°
61°
10
83°
60°
11
82°
58°
12
83°
60°
13
83°
62°
14
82°
62°
15
79°
61°
16
84°
53°
17
82°
53°
18
76°
54°
19
76°
54°
20
74°
56°
21
76°
52°
22
75°
58°
23
77°
59°
24
81°
60°
25
83°
58°
26
83°
49°
27
79°
50°
28
73°
49°
29
73°
51°
30
74°
55°
31
75°
58°
1
81°
58°
2
81°
56°
3
79°
51°
4
79°
56°
5
78°
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 73° to 84°, with overnight lows between 49° and 63°. The average high for August is 79° 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 Westminster. See also: September | October | November.
