S
M
T
W
T
F
S
26
74°
54°
27
70°
54°
28
76°
55°
29
78°
56°
30
79°
57°
31
79°
50°
1
69°
47°
2
68°
50°
3
69°
49°
4
73°
52°
5
75°
53°
6
68°
49°
7
69°
54°
8
73°
53°
9
71°
54°
10
68°
52°
11
70°
50°
12
69°
49°
13
72°
53°
14
71°
54°
15
74°
53°
16
76°
53°
17
75°
52°
18
72°
53°
19
76°
53°
20
75°
51°
21
74°
52°
22
76°
44°
23
68°
40°
24
64°
39°
25
61°
40°
26
63°
41°
27
64°
41°
28
67°
42°
29
63°
48°
30
71°
46°
31
72°
48°
1
72°
49°
2
71°
47°
3
71°
48°
4
70°
49°
5
71°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fort McMurray
Fort McMurray's August 2026 forecast shows daily high temperatures ranging from 61° to 79°, with overnight lows between 39° and 57°. The average high for August is 71° with an average low of 50°. 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 Fort McMurray. See also: September | October | November.
