S
M
T
W
T
F
S
26
73°
59°
27
67°
57°
28
70°
59°
29
71°
58°
30
65°
58°
31
67°
57°
1
69°
57°
2
67°
58°
3
69°
59°
4
72°
58°
5
70°
57°
6
64°
55°
7
65°
57°
8
68°
57°
9
66°
54°
10
62°
52°
11
62°
54°
12
66°
55°
13
68°
56°
14
68°
56°
15
69°
57°
16
69°
55°
17
57°
45°
18
59°
47°
19
60°
52°
20
66°
53°
21
69°
54°
22
68°
49°
23
67°
53°
24
65°
50°
25
67°
54°
26
68°
54°
27
67°
49°
28
66°
44°
29
59°
50°
30
59°
49°
31
58°
52°
1
58°
49°
2
57°
50°
3
59°
43°
4
54°
39°
5
51°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Yellowknife
Yellowknife's August 2026 forecast shows daily high temperatures ranging from 51° to 73°, with overnight lows between 39° and 59°. The average high for August is 65° 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.
