S
M
T
W
T
F
S
30
68°
60°
31
75°
67°
1
84°
67°
2
85°
67°
3
80°
63°
4
76°
57°
5
73°
54°
6
73°
55°
7
75°
55°
8
74°
57°
9
74°
56°
10
72°
55°
11
71°
49°
12
73°
52°
13
74°
53°
14
72°
53°
15
71°
53°
16
72°
52°
17
72°
48°
18
65°
45°
19
68°
50°
20
74°
53°
21
74°
53°
22
73°
52°
23
74°
51°
24
73°
50°
25
72°
50°
26
71°
49°
27
72°
50°
28
72°
50°
29
71°
48°
30
65°
46°
1
64°
47°
2
69°
48°
3
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Randolph
Randolph's September 2026 forecast shows daily high temperatures ranging from 64° to 85°, with overnight lows between 45° and 67°. The average high for September is 73° with an average low of 53°. 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 Randolph. See also: October | November | December.