S
M
T
W
T
F
S
30
75°
65°
31
84°
63°
1
78°
55°
2
78°
58°
3
79°
62°
4
83°
66°
5
84°
62°
6
78°
53°
7
72°
56°
8
75°
54°
9
73°
52°
10
72°
52°
11
71°
48°
12
72°
47°
13
68°
48°
14
70°
46°
15
74°
52°
16
73°
52°
17
73°
53°
18
74°
51°
19
72°
51°
20
74°
52°
21
74°
50°
22
72°
50°
23
72°
51°
24
74°
53°
25
74°
52°
26
72°
51°
27
73°
50°
28
72°
50°
29
71°
49°
30
70°
50°
1
70°
49°
2
69°
47°
3
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Viking
Viking's September 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 46° and 66°. The average high for September is 73° with an average low of 52°. 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 Viking. See also: October | November | December.