S
M
T
W
T
F
S
30
81°
63°
31
80°
62°
1
81°
58°
2
73°
55°
3
73°
57°
4
74°
55°
5
73°
54°
6
76°
61°
7
79°
61°
8
74°
60°
9
73°
60°
10
77°
61°
11
79°
60°
12
78°
60°
13
79°
61°
14
79°
51°
15
72°
51°
16
69°
51°
17
71°
50°
18
70°
49°
19
69°
50°
20
69°
52°
21
76°
55°
22
76°
56°
23
75°
48°
24
76°
47°
25
70°
47°
26
68°
49°
27
73°
53°
28
73°
53°
29
74°
46°
30
72°
45°
1
66°
47°
2
67°
47°
3
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Smithfield
Smithfield's September 2026 forecast shows daily high temperatures ranging from 66° to 81°, with overnight lows between 45° and 63°. The average high for September is 74° with an average low of 54°. 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 Smithfield. See also: October | November | December.
