S
M
T
W
T
F
S
26
74°
55°
27
78°
55°
28
77°
52°
29
75°
50°
30
76°
53°
31
77°
56°
1
75°
54°
2
77°
56°
3
78°
57°
4
78°
56°
5
77°
56°
6
78°
54°
7
77°
54°
8
77°
53°
9
76°
54°
10
73°
51°
11
75°
46°
12
68°
50°
13
69°
53°
14
76°
46°
15
73°
49°
16
73°
48°
17
72°
50°
18
76°
48°
19
74°
46°
20
71°
47°
21
74°
48°
22
74°
48°
23
73°
51°
24
70°
43°
25
65°
43°
26
64°
44°
27
63°
43°
28
63°
42°
29
64°
42°
30
64°
44°
31
63°
46°
1
66°
49°
2
68°
47°
3
69°
48°
4
70°
41°
5
62°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Dalmuir
Dalmuir's August 2026 forecast shows daily high temperatures ranging from 62° to 78°, with overnight lows between 38° and 57°. The average high for August is 72° with an average low of 49°. 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 Dalmuir. See also: September | October | November.