S
M
T
W
T
F
S
27
90°
80°
28
90°
78°
29
89°
79°
30
89°
79°
1
92°
78°
2
89°
78°
3
89°
79°
4
88°
76°
5
89°
78°
6
89°
79°
7
91°
77°
8
91°
78°
9
91°
80°
10
88°
77°
11
90°
78°
12
91°
79°
13
90°
79°
14
90°
80°
15
89°
78°
16
87°
79°
17
86°
78°
18
88°
78°
19
87°
77°
20
88°
76°
21
87°
77°
22
85°
77°
23
85°
78°
24
86°
78°
25
85°
77°
26
85°
78°
27
86°
78°
28
87°
77°
29
87°
78°
30
85°
78°
31
85°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Río Grande
Río Grande's October 2026 forecast shows daily high temperatures ranging from 85° to 91°, with overnight lows between 76° and 80°. The average high for October is 87° with an average low of 78°. 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 Río Grande. See also: November | December | January.
