S
M
T
W
T
F
S
30
77°
40°
31
76°
42°
1
79°
39°
2
74°
44°
3
75°
44°
4
78°
41°
5
73°
37°
6
71°
38°
7
72°
39°
8
73°
38°
9
72°
38°
10
73°
37°
11
71°
36°
12
70°
36°
13
Hist. Avg.
74°
40°
14
Hist. Avg.
74°
40°
15
Hist. Avg.
74°
40°
16
Hist. Avg.
73°
40°
17
Hist. Avg.
73°
39°
18
Hist. Avg.
72°
39°
19
Hist. Avg.
72°
39°
20
Hist. Avg.
71°
38°
21
Hist. Avg.
71°
38°
22
Hist. Avg.
70°
38°
23
Hist. Avg.
70°
38°
24
Hist. Avg.
69°
37°
25
Hist. Avg.
69°
37°
26
Hist. Avg.
68°
37°
27
Hist. Avg.
68°
36°
28
Hist. Avg.
67°
36°
29
Hist. Avg.
67°
36°
30
Hist. Avg.
66°
35°
1
Hist. Avg.
66°
35°
2
Hist. Avg.
65°
35°
3
Hist. Avg.
65°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Logan
Logan's September 2026 forecast shows daily high temperatures ranging from 70° to 79°, with overnight lows between 36° and 44°. The average high for September is 74° with an average low of 39°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Logan. See also: October | November | December.