S
M
T
W
T
F
S
27
74°
43°
28
68°
47°
29
71°
49°
30
72°
48°
1
71°
46°
2
75°
51°
3
75°
47°
4
69°
48°
5
65°
41°
6
64°
46°
7
64°
43°
8
65°
48°
9
61°
42°
10
63°
43°
11
65°
46°
12
66°
41°
13
68°
46°
14
61°
43°
15
60°
48°
16
59°
45°
17
59°
48°
18
58°
46°
19
59°
45°
20
60°
44°
21
65°
40°
22
57°
37°
23
55°
37°
24
57°
42°
25
Hist. Avg.
60°
42°
26
Hist. Avg.
60°
42°
27
Hist. Avg.
59°
42°
28
Hist. Avg.
59°
42°
29
Hist. Avg.
58°
42°
30
Hist. Avg.
58°
41°
31
Hist. Avg.
58°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Rainier
Rainier's October 2026 forecast shows daily high temperatures ranging from 55° to 75°, with overnight lows between 37° and 51°. The average high for October is 65° with an average low of 45°. 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 Rainier. See also: November | December | January.
