S
M
T
W
T
F
S
30
93°
72°
31
96°
73°
1
97°
73°
2
98°
72°
3
96°
73°
4
95°
72°
5
93°
73°
6
93°
72°
7
92°
72°
8
91°
71°
9
93°
70°
10
92°
71°
11
91°
68°
12
91°
69°
13
89°
67°
14
90°
68°
15
86°
65°
16
81°
68°
17
82°
68°
18
79°
68°
19
79°
68°
20
80°
67°
21
82°
68°
22
84°
67°
23
86°
67°
24
84°
66°
25
80°
67°
26
82°
66°
27
82°
60°
28
77°
57°
29
75°
56°
30
77°
56°
1
76°
58°
2
78°
61°
3
76°
59°
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 75° to 98°, with overnight lows between 56° and 73°. The average high for September is 85° with an average low of 67°. 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.
