S
M
T
W
T
F
S
30
86°
69°
31
94°
67°
1
96°
72°
2
99°
73°
3
98°
73°
4
96°
73°
5
96°
70°
6
84°
66°
7
87°
63°
8
86°
58°
9
89°
58°
10
92°
64°
11
97°
70°
12
91°
70°
13
91°
72°
14
93°
69°
15
84°
63°
16
87°
57°
17
92°
59°
18
95°
69°
19
88°
68°
20
91°
67°
21
92°
69°
22
85°
66°
23
73°
63°
24
69°
58°
25
72°
53°
26
76°
56°
27
78°
54°
28
77°
56°
29
76°
58°
30
79°
59°
1
76°
60°
2
75°
57°
3
80°
63°
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 69° to 92°, with overnight lows between 53° and 69°. The average high for September is 79° with an average low of 60°. 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.
