S
M
T
W
T
F
S
30
78°
57°
31
79°
64°
1
73°
67°
2
69°
65°
3
88°
66°
4
82°
65°
5
79°
61°
6
74°
56°
7
79°
50°
8
81°
57°
9
83°
67°
10
83°
58°
11
76°
49°
12
77°
57°
13
79°
60°
14
78°
59°
15
77°
58°
16
76°
53°
17
75°
54°
18
74°
53°
19
73°
54°
20
72°
50°
21
73°
54°
22
67°
54°
23
67°
53°
24
68°
53°
25
69°
51°
26
73°
51°
27
69°
47°
28
69°
51°
29
73°
52°
30
74°
52°
1
73°
51°
2
72°
51°
3
71°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Matamoras
Matamoras's September 2026 forecast shows daily high temperatures ranging from 67° to 83°, with overnight lows between 47° and 67°. The average high for September is 74° with an average low of 54°. 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 Matamoras. See also: October | November | December.
