S
M
T
W
T
F
S
30
88°
67°
31
88°
67°
1
87°
66°
2
88°
66°
3
88°
66°
4
87°
65°
5
87°
66°
6
88°
66°
7
87°
65°
8
87°
65°
9
88°
64°
10
87°
65°
11
87°
66°
12
86°
66°
13
87°
65°
14
84°
60°
15
75°
62°
16
84°
62°
17
85°
59°
18
86°
52°
19
74°
49°
20
75°
49°
21
78°
52°
22
81°
53°
23
82°
57°
24
82°
56°
25
79°
57°
26
80°
57°
27
80°
54°
28
79°
49°
29
70°
48°
30
73°
50°
1
77°
53°
2
79°
53°
3
80°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Raymondville
Raymondville's September 2026 forecast shows daily high temperatures ranging from 70° to 88°, with overnight lows between 48° and 67°. The average high for September is 83° with an average low of 59°. 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 Raymondville. See also: October | November | December.
