S
M
T
W
T
F
S
30
84°
49°
31
86°
51°
1
87°
51°
2
86°
50°
3
86°
50°
4
85°
47°
5
82°
48°
6
83°
46°
7
82°
45°
8
81°
49°
9
83°
50°
10
84°
44°
11
82°
49°
12
83°
46°
13
79°
48°
14
79°
48°
15
Hist. Avg.
80°
45°
16
Hist. Avg.
80°
44°
17
Hist. Avg.
80°
44°
18
Hist. Avg.
79°
44°
19
Hist. Avg.
79°
43°
20
Hist. Avg.
79°
43°
21
Hist. Avg.
78°
42°
22
Hist. Avg.
78°
42°
23
Hist. Avg.
78°
41°
24
Hist. Avg.
77°
41°
25
Hist. Avg.
77°
40°
26
Hist. Avg.
76°
40°
27
Hist. Avg.
76°
40°
28
Hist. Avg.
76°
39°
29
Hist. Avg.
75°
38°
30
Hist. Avg.
75°
38°
1
Hist. Avg.
74°
38°
2
Hist. Avg.
74°
37°
3
Hist. Avg.
74°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Rehoboth
Rehoboth's September 2026 forecast shows daily high temperatures ranging from 79° to 87°, with overnight lows between 44° and 51°. The average high for September is 83° with an average low of 48°. 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 Rehoboth. See also: October | November | December.