S
M
T
W
T
F
S
26
79°
54°
27
81°
53°
28
77°
61°
29
75°
54°
30
80°
50°
31
85°
48°
1
82°
65°
2
67°
60°
3
76°
50°
4
79°
48°
5
82°
51°
6
81°
58°
7
79°
62°
8
82°
57°
9
78°
53°
10
80°
60°
11
78°
58°
12
75°
57°
13
78°
56°
14
80°
55°
15
75°
59°
16
79°
60°
17
76°
53°
18
77°
49°
19
75°
48°
20
74°
48°
21
76°
47°
22
73°
57°
23
66°
53°
24
67°
53°
25
74°
53°
26
77°
50°
27
73°
55°
28
73°
52°
29
77°
59°
30
73°
63°
31
80°
65°
1
81°
62°
2
78°
59°
3
79°
57°
4
74°
56°
5
75°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Jacobs
St. Jacobs's August 2026 forecast shows daily high temperatures ranging from 73° to 81°, with overnight lows between 52° and 65°. The average high for August is 77° with an average low of 59°. 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 St. Jacobs. See also: September | October | November.
