S
M
T
W
T
F
S
30
102°
79°
31
100°
77°
1
100°
79°
2
100°
75°
3
95°
73°
4
100°
75°
5
100°
75°
6
100°
73°
7
103°
78°
8
104°
78°
9
103°
75°
10
92°
71°
11
98°
76°
12
105°
76°
13
103°
75°
14
88°
69°
15
86°
66°
16
87°
67°
17
89°
70°
18
91°
68°
19
87°
64°
20
84°
61°
21
89°
68°
22
88°
67°
23
88°
67°
24
82°
66°
25
76°
66°
26
78°
65°
27
81°
65°
28
83°
64°
29
81°
65°
30
83°
56°
1
72°
52°
2
72°
51°
3
71°
51°
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 71° to 105°, with overnight lows between 51° and 78°. The average high for September is 88° with an average low of 67°. 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.
