S
M
T
W
T
F
S
26
76°
52°
27
76°
52°
28
71°
54°
29
69°
52°
30
68°
56°
31
69°
52°
1
69°
52°
2
70°
53°
3
68°
54°
4
69°
58°
5
76°
56°
6
76°
53°
7
75°
55°
8
76°
53°
9
67°
57°
10
68°
52°
11
70°
52°
12
72°
55°
13
71°
59°
14
75°
55°
15
76°
52°
16
76°
51°
17
75°
53°
18
75°
59°
19
68°
60°
20
68°
51°
21
67°
53°
22
67°
53°
23
71°
54°
24
74°
51°
25
75°
51°
26
74°
58°
27
69°
51°
28
64°
50°
29
65°
48°
30
70°
53°
31
70°
53°
1
66°
52°
2
64°
50°
3
66°
49°
4
65°
47°
5
65°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in New Westminster
New Westminster's August 2026 forecast shows daily high temperatures ranging from 64° to 76°, with overnight lows between 47° and 60°. The average high for August is 71° with an average low of 53°. 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 New Westminster. See also: September | October | November.
