S
M
T
W
T
F
S
30
83°
61°
31
84°
61°
1
86°
62°
2
87°
64°
3
88°
63°
4
86°
63°
5
82°
62°
6
81°
57°
7
82°
57°
8
82°
61°
9
85°
61°
10
86°
62°
11
86°
62°
12
85°
61°
13
85°
59°
14
84°
60°
15
85°
60°
16
86°
59°
17
Hist. Avg.
82°
59°
18
Hist. Avg.
82°
59°
19
Hist. Avg.
81°
58°
20
Hist. Avg.
81°
58°
21
Hist. Avg.
81°
57°
22
Hist. Avg.
80°
57°
23
Hist. Avg.
80°
57°
24
Hist. Avg.
80°
56°
25
Hist. Avg.
79°
56°
26
Hist. Avg.
79°
55°
27
Hist. Avg.
79°
55°
28
Hist. Avg.
78°
54°
29
Hist. Avg.
78°
54°
30
Hist. Avg.
78°
54°
1
Hist. Avg.
77°
53°
2
Hist. Avg.
77°
53°
3
Hist. Avg.
77°
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 81° to 88°, with overnight lows between 57° and 64°. The average high for September is 85° with an average low of 61°. 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.
