S
M
T
W
T
F
S
30
54°
38°
31
53°
44°
1
55°
34°
2
52°
36°
3
49°
29°
4
58°
46°
5
61°
52°
6
68°
46°
7
69°
51°
8
58°
52°
9
55°
48°
10
54°
47°
11
56°
44°
12
57°
43°
13
56°
36°
14
55°
42°
15
52°
44°
16
49°
42°
17
52°
38°
18
51°
37°
19
50°
36°
20
48°
35°
21
49°
35°
22
48°
34°
23
49°
34°
24
52°
35°
25
50°
30°
26
43°
28°
27
42°
27°
28
49°
36°
29
47°
33°
30
42°
33°
1
41°
32°
2
40°
26°
3
39°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fairbanks
Fairbanks's September 2026 forecast shows daily high temperatures ranging from 39° to 57°, with overnight lows between 24° and 44°. The average high for September is 48° with an average low of 35°. 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 Fairbanks. See also: October | November | December.
