S
M
T
W
T
F
S
26
67°
54°
27
69°
53°
28
68°
53°
29
74°
55°
30
73°
50°
31
73°
50°
1
Hist. Avg.
67°
52°
2
Hist. Avg.
67°
52°
3
Hist. Avg.
67°
52°
4
Hist. Avg.
66°
51°
5
Hist. Avg.
66°
51°
6
Hist. Avg.
66°
51°
7
Hist. Avg.
66°
51°
8
Hist. Avg.
66°
51°
9
Hist. Avg.
66°
51°
10
Hist. Avg.
66°
51°
11
Hist. Avg.
65°
50°
12
Hist. Avg.
65°
50°
13
Hist. Avg.
65°
50°
14
Hist. Avg.
65°
50°
15
Hist. Avg.
65°
50°
16
Hist. Avg.
64°
50°
17
Hist. Avg.
64°
50°
18
Hist. Avg.
64°
49°
19
Hist. Avg.
63°
49°
20
Hist. Avg.
63°
48°
21
Hist. Avg.
62°
48°
22
Hist. Avg.
62°
48°
23
Hist. Avg.
61°
47°
24
Hist. Avg.
61°
47°
25
Hist. Avg.
60°
46°
26
Hist. Avg.
60°
46°
27
Hist. Avg.
59°
46°
28
Hist. Avg.
59°
45°
29
Hist. Avg.
58°
45°
30
Hist. Avg.
58°
44°
31
Hist. Avg.
57°
44°
1
Hist. Avg.
57°
44°
2
Hist. Avg.
56°
43°
3
Hist. Avg.
56°
43°
4
Hist. Avg.
55°
42°
5
Hist. Avg.
55°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Yellowknife
Yellowknife's August 2026 forecast shows daily high temperatures ranging from 67° to 74°, with overnight lows between 50° and 55°. 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 Yellowknife. See also: September | October | November.