S
M
T
W
T
F
S
26
81°
54°
27
80°
47°
28
76°
49°
29
72°
45°
30
70°
45°
31
71°
46°
1
72°
47°
2
73°
54°
3
79°
54°
4
80°
56°
5
82°
57°
6
80°
56°
7
80°
56°
8
81°
55°
9
82°
54°
10
81°
45°
11
76°
50°
12
73°
50°
13
72°
51°
14
Hist. Avg.
75°
48°
15
Hist. Avg.
75°
48°
16
Hist. Avg.
75°
48°
17
Hist. Avg.
74°
47°
18
Hist. Avg.
74°
47°
19
Hist. Avg.
73°
47°
20
Hist. Avg.
73°
46°
21
Hist. Avg.
72°
46°
22
Hist. Avg.
72°
46°
23
Hist. Avg.
72°
45°
24
Hist. Avg.
71°
45°
25
Hist. Avg.
71°
45°
26
Hist. Avg.
70°
44°
27
Hist. Avg.
70°
44°
28
Hist. Avg.
70°
44°
29
Hist. Avg.
69°
43°
30
Hist. Avg.
69°
43°
31
Hist. Avg.
68°
43°
1
Hist. Avg.
68°
42°
2
Hist. Avg.
68°
42°
3
Hist. Avg.
67°
42°
4
Hist. Avg.
67°
41°
5
Hist. Avg.
66°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Rosthern
Rosthern's August 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 45° and 57°. The average high for August is 77° with an average low of 51°. 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 Rosthern. See also: September | October | November.