S
M
T
W
T
F
S
30
89°
72°
31
93°
74°
1
96°
75°
2
93°
77°
3
95°
76°
4
98°
76°
5
89°
74°
6
85°
70°
7
83°
63°
8
83°
61°
9
88°
69°
10
91°
72°
11
84°
68°
12
85°
68°
13
87°
70°
14
90°
70°
15
88°
68°
16
82°
65°
17
81°
66°
18
82°
65°
19
81°
63°
20
82°
61°
21
84°
66°
22
83°
65°
23
77°
65°
24
78°
64°
25
79°
64°
26
82°
63°
27
82°
63°
28
81°
62°
29
81°
63°
30
80°
63°
1
81°
62°
2
80°
63°
3
80°
61°
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 77° to 91°, with overnight lows between 61° and 72°. The average high for September is 83° with an average low of 65°. 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.
