S
M
T
W
T
F
S
26
94°
66°
27
86°
65°
28
84°
60°
29
91°
59°
30
90°
70°
31
75°
65°
1
84°
58°
2
84°
55°
3
87°
59°
4
75°
56°
5
81°
46°
6
83°
54°
7
76°
55°
8
82°
49°
9
82°
55°
10
83°
53°
11
87°
56°
12
86°
56°
13
82°
59°
14
85°
53°
15
79°
67°
16
77°
55°
17
85°
48°
18
80°
50°
19
77°
42°
20
77°
47°
21
79°
57°
22
77°
45°
23
75°
45°
24
81°
56°
25
82°
58°
26
78°
56°
27
80°
53°
28
81°
61°
29
82°
62°
30
76°
59°
31
76°
56°
1
81°
52°
2
77°
54°
3
78°
53°
4
76°
58°
5
75°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Siren
Siren's August 2026 forecast shows daily high temperatures ranging from 75° to 82°, with overnight lows between 45° and 62°. The average high for August is 78° with an average low of 55°. 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 Siren. See also: September | October | November.
