S
M
T
W
T
F
S
30
94°
62°
31
93°
62°
1
88°
60°
2
93°
60°
3
96°
59°
4
96°
64°
5
96°
68°
6
95°
68°
7
100°
69°
8
95°
63°
9
88°
63°
10
86°
62°
11
91°
63°
12
77°
60°
13
91°
72°
14
98°
63°
15
73°
57°
16
87°
64°
17
89°
64°
18
85°
58°
19
78°
53°
20
77°
51°
21
78°
53°
22
77°
53°
23
84°
55°
24
82°
53°
25
81°
55°
26
80°
46°
27
83°
53°
28
83°
54°
29
82°
52°
30
73°
51°
1
81°
51°
2
80°
52°
3
81°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lamar
Lamar's September 2026 forecast shows daily high temperatures ranging from 73° to 98°, with overnight lows between 46° and 72°. The average high for September is 82° with an average low of 55°. 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 Lamar. See also: October | November | December.
