S
M
T
W
T
F
S
30
65°
46°
31
64°
44°
1
59°
40°
2
60°
36°
3
56°
36°
4
55°
35°
5
53°
35°
6
53°
36°
7
52°
34°
8
52°
34°
9
53°
35°
10
51°
33°
11
50°
33°
12
51°
32°
13
51°
31°
14
50°
31°
15
49°
36°
16
50°
33°
17
50°
30°
18
49°
31°
19
46°
29°
20
47°
31°
21
46°
28°
22
46°
27°
23
45°
27°
24
45°
28°
25
44°
26°
26
43°
23°
27
43°
32°
28
44°
35°
29
44°
34°
30
48°
35°
1
46°
37°
2
51°
34°
3
51°
34°
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 43° to 65°, with overnight lows between 23° and 46°. The average high for September is 50° with an average low of 33°. 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.
