S
M
T
W
T
F
S
27
90°
73°
28
85°
67°
29
89°
60°
30
89°
61°
1
96°
61°
2
103°
64°
3
101°
74°
4
101°
73°
5
102°
75°
6
101°
73°
7
103°
67°
8
97°
71°
9
96°
65°
10
87°
67°
11
72°
58°
12
66°
55°
13
70°
54°
14
78°
56°
15
86°
56°
16
90°
57°
17
89°
56°
18
86°
58°
19
89°
58°
20
91°
59°
21
91°
57°
22
83°
53°
23
84°
58°
24
83°
58°
25
83°
57°
26
82°
57°
27
83°
56°
28
83°
56°
29
82°
55°
30
82°
56°
31
80°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Grand Terrace
Grand Terrace's October 2026 forecast shows daily high temperatures ranging from 66° to 96°, with overnight lows between 53° and 67°. The average high for October is 83° with an average low of 57°. 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 Grand Terrace. See also: November | December | January.
