S
M
T
W
T
F
S
30
77°
51°
31
77°
51°
1
79°
52°
2
78°
51°
3
77°
51°
4
77°
50°
5
75°
50°
6
74°
49°
7
73°
50°
8
74°
51°
9
76°
55°
10
78°
50°
11
75°
53°
12
77°
50°
13
74°
50°
14
73°
49°
15
Hist. Avg.
67°
56°
16
Hist. Avg.
67°
55°
17
Hist. Avg.
66°
55°
18
Hist. Avg.
66°
55°
19
Hist. Avg.
66°
54°
20
Hist. Avg.
66°
54°
21
Hist. Avg.
66°
54°
22
Hist. Avg.
65°
53°
23
Hist. Avg.
65°
53°
24
Hist. Avg.
65°
52°
25
Hist. Avg.
65°
52°
26
Hist. Avg.
64°
52°
27
Hist. Avg.
64°
51°
28
Hist. Avg.
64°
51°
29
Hist. Avg.
63°
50°
30
Hist. Avg.
63°
50°
1
Hist. Avg.
63°
49°
2
Hist. Avg.
63°
49°
3
Hist. Avg.
62°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Summerhaven
Summerhaven's September 2026 forecast shows daily high temperatures ranging from 73° to 79°, with overnight lows between 49° and 55°. The average high for September is 76° with an average low of 51°. 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 Summerhaven. See also: October | November | December.
