S
M
T
W
T
F
S
26
83°
58°
27
82°
58°
28
81°
57°
29
79°
56°
30
80°
51°
31
73°
49°
1
72°
48°
2
72°
48°
3
73°
49°
4
73°
55°
5
75°
54°
6
77°
54°
7
73°
54°
8
76°
51°
9
74°
51°
10
75°
47°
11
74°
44°
12
76°
54°
13
74°
56°
14
83°
54°
15
82°
53°
16
79°
56°
17
80°
51°
18
79°
53°
19
77°
47°
20
72°
44°
21
72°
43°
22
73°
43°
23
77°
45°
24
78°
48°
25
79°
48°
26
79°
51°
27
80°
51°
28
79°
47°
29
78°
49°
30
79°
50°
31
79°
45°
1
78°
39°
2
70°
41°
3
69°
48°
4
74°
49°
5
75°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Saint-Prosper-de-Dorchester
Saint-Prosper-de-Dorchester's August 2026 forecast shows daily high temperatures ranging from 69° to 83°, with overnight lows between 39° and 58°. The average high for August is 77° 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 Saint-Prosper-de-Dorchester. See also: September | October | November.
