S
M
T
W
T
F
S
30
51°
44°
31
N/A
1
55°
42°
2
55°
50°
3
56°
47°
4
56°
49°
5
55°
43°
6
57°
44°
7
56°
44°
8
55°
42°
9
52°
42°
10
51°
41°
11
51°
43°
12
52°
40°
13
50°
41°
14
52°
39°
15
50°
43°
16
50°
40°
17
48°
42°
18
48°
40°
19
47°
39°
20
46°
38°
21
46°
39°
22
45°
38°
23
45°
36°
24
44°
35°
25
43°
33°
26
43°
33°
27
42°
31°
28
42°
34°
29
41°
34°
30
41°
33°
1
40°
32°
2
40°
36°
3
44°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tundra
Tundra's September 2026 forecast shows daily high temperatures ranging from 40° to 57°, with overnight lows between 31° and 50°. The average high for September is 48° with an average low of 39°. 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 Tundra. See also: October | November | December.
