S
M
T
W
T
F
S
26
95°
61°
27
91°
60°
28
94°
61°
29
88°
57°
30
85°
53°
31
85°
52°
1
86°
53°
2
93°
59°
3
95°
53°
4
96°
61°
5
95°
59°
6
97°
57°
7
96°
59°
8
95°
58°
9
92°
53°
10
89°
51°
11
88°
50°
12
87°
51°
13
87°
50°
14
86°
50°
15
87°
51°
16
86°
49°
17
86°
50°
18
85°
51°
19
85°
49°
20
86°
51°
21
85°
51°
22
84°
48°
23
82°
46°
24
82°
45°
25
83°
46°
26
82°
47°
27
83°
46°
28
87°
47°
29
87°
51°
30
88°
53°
31
88°
53°
1
87°
47°
2
78°
47°
3
78°
46°
4
79°
45°
5
79°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Logan
Logan's August 2026 forecast shows daily high temperatures ranging from 78° to 97°, with overnight lows between 45° and 61°. The average high for August is 87° with an average low of 52°. 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 Logan. See also: September | October | November.