S
M
T
W
T
F
S
27
79°
55°
28
80°
56°
29
78°
55°
30
79°
56°
1
76°
53°
2
71°
52°
3
78°
54°
4
79°
55°
5
77°
55°
6
72°
54°
7
75°
54°
8
76°
55°
9
76°
54°
10
75°
53°
11
76°
49°
12
64°
43°
13
62°
40°
14
61°
38°
15
61°
38°
16
62°
39°
17
61°
38°
18
61°
36°
19
59°
37°
20
59°
39°
21
60°
38°
22
60°
40°
23
76°
47°
24
74°
46°
25
72°
43°
26
62°
37°
27
58°
32°
28
57°
33°
29
57°
40°
30
61°
46°
31
67°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Rio Grande
Rio Grande's October 2026 forecast shows daily high temperatures ranging from 57° to 80°, with overnight lows between 32° and 56°. The average high for October is 69° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Rio Grande. See also: November | December | January.