S
M
T
W
T
F
S
26
101°
75°
27
95°
66°
28
92°
64°
29
86°
65°
30
93°
67°
31
98°
65°
1
96°
68°
2
97°
67°
3
98°
64°
4
89°
65°
5
90°
63°
6
89°
63°
7
87°
64°
8
89°
58°
9
91°
58°
10
92°
61°
11
92°
61°
12
91°
60°
13
84°
61°
14
91°
62°
15
91°
61°
16
90°
61°
17
92°
60°
18
91°
61°
19
85°
59°
20
90°
60°
21
91°
60°
22
92°
61°
23
91°
60°
24
91°
60°
25
90°
59°
26
90°
57°
27
88°
59°
28
84°
57°
29
85°
56°
30
86°
59°
31
82°
53°
1
84°
57°
2
84°
55°
3
87°
55°
4
86°
57°
5
80°
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 80° to 101°, with overnight lows between 53° and 75°. The average high for August is 90° with an average low of 61°. 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.
