S
M
T
W
T
F
S
30
86°
66°
31
87°
69°
1
88°
71°
2
87°
69°
3
87°
65°
4
80°
64°
5
81°
60°
6
82°
63°
7
77°
62°
8
80°
62°
9
79°
61°
10
75°
59°
11
74°
57°
12
75°
58°
13
76°
56°
14
79°
59°
15
80°
61°
16
80°
60°
17
79°
61°
18
80°
61°
19
74°
60°
20
78°
60°
21
78°
59°
22
79°
60°
23
79°
59°
24
77°
58°
25
71°
55°
26
73°
57°
27
76°
57°
28
76°
56°
29
75°
57°
30
76°
57°
1
76°
56°
2
75°
57°
3
76°
58°
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 71° to 88°, with overnight lows between 55° and 71°. 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.
