S
M
T
W
T
F
S
30
73°
46°
31
73°
45°
1
71°
51°
2
71°
53°
3
69°
48°
4
70°
50°
5
70°
44°
6
69°
42°
7
69°
43°
8
70°
42°
9
72°
44°
10
71°
43°
11
71°
45°
12
65°
39°
13
67°
42°
14
68°
47°
15
Hist. Avg.
71°
44°
16
Hist. Avg.
70°
43°
17
Hist. Avg.
70°
43°
18
Hist. Avg.
69°
43°
19
Hist. Avg.
69°
43°
20
Hist. Avg.
68°
42°
21
Hist. Avg.
68°
42°
22
Hist. Avg.
68°
42°
23
Hist. Avg.
67°
42°
24
Hist. Avg.
67°
41°
25
Hist. Avg.
66°
41°
26
Hist. Avg.
66°
41°
27
Hist. Avg.
65°
41°
28
Hist. Avg.
65°
40°
29
Hist. Avg.
64°
40°
30
Hist. Avg.
64°
40°
1
Hist. Avg.
63°
40°
2
Hist. Avg.
63°
40°
3
Hist. Avg.
63°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Summerland
Summerland's September 2026 forecast shows daily high temperatures ranging from 65° to 73°, with overnight lows between 39° and 53°. The average high for September is 70° with an average low of 45°. 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 Summerland. See also: October | November | December.
