S
M
T
W
T
F
S
26
83°
63°
27
85°
64°
28
83°
65°
29
80°
64°
30
79°
64°
31
87°
65°
1
87°
65°
2
80°
73°
3
85°
66°
4
90°
71°
5
82°
73°
6
91°
73°
7
90°
71°
8
87°
72°
9
90°
68°
10
93°
70°
11
93°
68°
12
86°
65°
13
83°
66°
14
86°
65°
15
85°
64°
16
82°
60°
17
81°
61°
18
87°
62°
19
87°
64°
20
86°
63°
21
85°
59°
22
85°
64°
23
87°
65°
24
88°
65°
25
87°
64°
26
84°
64°
27
79°
63°
28
83°
63°
29
82°
62°
30
83°
63°
31
83°
62°
1
84°
58°
2
77°
55°
3
76°
55°
4
76°
56°
5
77°
55°
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 76° to 93°, with overnight lows between 55° and 73°. The average high for August is 85° with an average low of 64°. 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.
