S
M
T
W
T
F
S
27
66°
40°
28
64°
36°
29
65°
41°
30
64°
42°
1
63°
39°
2
68°
40°
3
61°
34°
4
62°
41°
5
66°
45°
6
61°
38°
7
64°
41°
8
71°
43°
9
71°
43°
10
70°
44°
11
71°
43°
12
59°
37°
13
57°
31°
14
55°
31°
15
56°
33°
16
55°
30°
17
54°
30°
18
54°
31°
19
57°
36°
20
58°
36°
21
64°
39°
22
64°
39°
23
63°
40°
24
57°
39°
25
56°
40°
26
52°
33°
27
55°
30°
28
51°
28°
29
52°
27°
30
53°
29°
31
56°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in La Grande
La Grande's October 2026 forecast shows daily high temperatures ranging from 51° to 71°, with overnight lows between 27° and 45°. The average high for October is 60° with an average low of 37°. 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 La Grande. See also: November | December | January.