S
M
T
W
T
F
S
30
78°
57°
31
77°
58°
1
76°
63°
2
75°
64°
3
83°
64°
4
84°
63°
5
83°
60°
6
78°
56°
7
76°
60°
8
79°
56°
9
75°
54°
10
74°
55°
11
74°
54°
12
77°
54°
13
75°
60°
14
80°
55°
15
71°
53°
16
70°
57°
17
71°
56°
18
70°
58°
19
75°
50°
20
72°
53°
21
73°
51°
22
76°
50°
23
72°
50°
24
72°
49°
25
73°
55°
26
73°
56°
27
71°
57°
28
74°
56°
29
75°
47°
30
67°
51°
1
69°
56°
2
74°
54°
3
73°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Guilford
Guilford's September 2026 forecast shows daily high temperatures ranging from 67° to 84°, with overnight lows between 47° and 64°. The average high for September is 75° with an average low of 55°. 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 Guilford. See also: October | November | December.
