S
M
T
W
T
F
S
27
66°
39°
28
75°
34°
29
79°
58°
30
77°
51°
1
76°
42°
2
81°
44°
3
81°
44°
4
81°
44°
5
85°
42°
6
82°
42°
7
82°
41°
8
82°
43°
9
81°
50°
10
71°
46°
11
61°
38°
12
60°
44°
13
61°
47°
14
65°
46°
15
64°
47°
16
63°
49°
17
62°
45°
18
64°
43°
19
67°
48°
20
68°
49°
21
68°
48°
22
67°
48°
23
66°
47°
24
66°
47°
25
65°
46°
26
65°
47°
27
56°
40°
28
53°
37°
29
53°
40°
30
52°
38°
31
53°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Umatilla
Umatilla's October 2026 forecast shows daily high temperatures ranging from 52° to 85°, with overnight lows between 35° and 50°. The average high for October is 66° with an average low of 44°. 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 Umatilla. See also: November | December | January.
