S
M
T
W
T
F
S
30
90°
70°
31
90°
71°
1
89°
71°
2
89°
65°
3
86°
63°
4
84°
62°
5
84°
64°
6
86°
67°
7
86°
66°
8
87°
69°
9
91°
70°
10
86°
63°
11
86°
63°
12
84°
69°
13
87°
61°
14
88°
60°
15
82°
60°
16
83°
61°
17
82°
60°
18
83°
61°
19
85°
61°
20
86°
63°
21
88°
65°
22
87°
65°
23
81°
64°
24
82°
64°
25
83°
63°
26
86°
63°
27
86°
62°
28
85°
63°
29
86°
63°
30
87°
62°
1
87°
62°
2
86°
61°
3
86°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Yukon
Yukon's September 2026 forecast shows daily high temperatures ranging from 81° to 91°, with overnight lows between 55° and 71°. The average high for September is 86° with an average low of 64°. 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 Yukon. See also: October | November | December.
