S
M
T
W
T
F
S
30
84°
68°
31
83°
62°
1
81°
62°
2
77°
63°
3
77°
63°
4
78°
64°
5
76°
62°
6
76°
62°
7
75°
63°
8
76°
63°
9
76°
62°
10
74°
61°
11
76°
63°
12
78°
61°
13
77°
62°
14
76°
61°
15
74°
62°
16
75°
59°
17
74°
60°
18
74°
60°
19
Hist. Avg.
78°
57°
20
Hist. Avg.
77°
57°
21
Hist. Avg.
77°
56°
22
Hist. Avg.
76°
56°
23
Hist. Avg.
76°
56°
24
Hist. Avg.
76°
55°
25
Hist. Avg.
75°
55°
26
Hist. Avg.
75°
54°
27
Hist. Avg.
75°
54°
28
Hist. Avg.
74°
54°
29
Hist. Avg.
74°
53°
30
Hist. Avg.
74°
53°
1
Hist. Avg.
73°
52°
2
Hist. Avg.
73°
52°
3
Hist. Avg.
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Smithville
Smithville's September 2026 forecast shows daily high temperatures ranging from 74° to 84°, with overnight lows between 59° and 68°. The average high for September is 77° with an average low of 62°. 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 Smithville. See also: October | November | December.
