S
M
T
W
T
F
S
30
67°
50°
31
72°
51°
1
80°
53°
2
83°
63°
3
84°
63°
4
82°
56°
5
90°
58°
6
74°
49°
7
72°
52°
8
67°
44°
9
65°
49°
10
66°
45°
11
71°
47°
12
72°
51°
13
75°
54°
14
78°
54°
15
81°
56°
16
73°
55°
17
70°
52°
18
72°
53°
19
66°
53°
20
71°
53°
21
74°
55°
22
74°
53°
23
71°
53°
24
67°
51°
25
73°
54°
26
75°
56°
27
75°
55°
28
68°
55°
29
74°
54°
30
75°
57°
1
77°
56°
2
74°
56°
3
77°
55°
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 65° to 90°, with overnight lows between 44° and 58°. The average high for September is 73° with an average low of 53°. 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.
