S
M
T
W
T
F
S
26
78°
57°
27
78°
56°
28
79°
57°
29
78°
56°
30
80°
58°
31
80°
63°
1
83°
63°
2
84°
62°
3
84°
63°
4
83°
63°
5
84°
56°
6
78°
56°
7
75°
57°
8
77°
56°
9
78°
58°
10
79°
58°
11
81°
61°
12
82°
60°
13
81°
61°
14
82°
60°
15
81°
62°
16
82°
61°
17
83°
60°
18
80°
56°
19
76°
55°
20
76°
55°
21
77°
59°
22
76°
60°
23
75°
58°
24
77°
58°
25
79°
60°
26
81°
59°
27
80°
54°
28
79°
57°
29
75°
60°
30
80°
59°
31
80°
60°
1
81°
59°
2
81°
59°
3
79°
54°
4
80°
51°
5
78°
57°
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 75° to 84°, with overnight lows between 51° and 63°. The average high for August is 80° with an average low of 58°. 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.
