S
M
T
W
T
F
S
26
85°
69°
27
85°
68°
28
84°
68°
29
84°
67°
30
83°
67°
31
84°
64°
1
82°
62°
2
79°
62°
3
78°
63°
4
79°
64°
5
79°
68°
6
83°
68°
7
85°
67°
8
85°
69°
9
86°
69°
10
86°
70°
11
85°
68°
12
82°
67°
13
84°
66°
14
83°
68°
15
83°
69°
16
84°
69°
17
86°
68°
18
83°
69°
19
87°
68°
20
86°
64°
21
83°
63°
22
81°
63°
23
80°
66°
24
81°
68°
25
83°
66°
26
80°
62°
27
80°
62°
28
81°
63°
29
80°
63°
30
79°
62°
31
81°
65°
1
82°
64°
2
83°
63°
3
82°
65°
4
81°
64°
5
86°
65°
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 78° to 87°, with overnight lows between 62° and 70°. The average high for August is 83° with an average low of 66°. 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.
