S
M
T
W
T
F
S
26
68°
48°
27
74°
49°
28
67°
52°
29
71°
45°
30
74°
49°
31
79°
54°
1
73°
57°
2
64°
47°
3
74°
44°
4
80°
53°
5
81°
51°
6
67°
49°
7
72°
43°
8
74°
47°
9
74°
47°
10
69°
43°
11
63°
46°
12
70°
42°
13
66°
46°
14
69°
41°
15
74°
44°
16
72°
46°
17
81°
54°
18
75°
51°
19
78°
47°
20
75°
49°
21
79°
45°
22
85°
51°
23
75°
56°
24
79°
50°
25
80°
51°
26
84°
54°
27
79°
52°
28
67°
45°
29
70°
48°
30
73°
46°
31
71°
49°
1
70°
44°
2
71°
44°
3
67°
46°
4
67°
43°
5
68°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Grande Prairie
Grande Prairie's August 2026 forecast shows daily high temperatures ranging from 67° to 84°, with overnight lows between 43° and 54°. The average high for August is 73° with an average low of 47°. 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 Grande Prairie. See also: September | October | November.
