S
M
T
W
T
F
S
26
82°
59°
27
83°
60°
28
83°
61°
29
84°
60°
30
83°
59°
31
84°
62°
1
88°
66°
2
89°
66°
3
89°
65°
4
88°
65°
5
88°
60°
6
83°
58°
7
81°
58°
8
82°
59°
9
83°
59°
10
83°
60°
11
85°
61°
12
86°
63°
13
87°
64°
14
86°
63°
15
88°
64°
16
88°
64°
17
87°
65°
18
86°
62°
19
83°
61°
20
80°
63°
21
81°
64°
22
82°
63°
23
80°
58°
24
81°
59°
25
83°
63°
26
85°
57°
27
85°
59°
28
81°
64°
29
85°
63°
30
86°
62°
31
84°
62°
1
85°
61°
2
84°
62°
3
83°
60°
4
84°
60°
5
83°
60°
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 80° to 89°, with overnight lows between 57° and 66°. The average high for August is 84° with an average low of 62°. 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.
