S
M
T
W
T
F
S
30
81°
54°
31
79°
61°
1
67°
59°
2
77°
59°
3
80°
62°
4
83°
63°
5
73°
60°
6
69°
54°
7
78°
54°
8
78°
53°
9
79°
57°
10
84°
65°
11
75°
52°
12
76°
50°
13
70°
59°
14
73°
49°
15
72°
46°
16
N/A
17
79°
66°
18
80°
48°
19
68°
52°
20
62°
54°
21
68°
52°
22
66°
50°
23
66°
51°
24
69°
52°
25
72°
52°
26
71°
51°
27
72°
53°
28
71°
52°
29
72°
51°
30
71°
49°
1
64°
49°
2
72°
52°
3
65°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Smithfield
Smithfield's September 2026 forecast shows daily high temperatures ranging from 62° to 80°, with overnight lows between 48° and 66°. The average high for September is 70° with an average low of 52°. 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.
