S
M
T
W
T
F
S
27
71°
44°
28
71°
38°
29
67°
42°
30
58°
43°
1
65°
42°
2
68°
44°
3
58°
34°
4
58°
37°
5
55°
33°
6
56°
38°
7
Hist. Avg.
62°
37°
8
Hist. Avg.
61°
37°
9
Hist. Avg.
61°
36°
10
Hist. Avg.
60°
36°
11
Hist. Avg.
60°
35°
12
Hist. Avg.
60°
35°
13
Hist. Avg.
59°
35°
14
Hist. Avg.
59°
34°
15
Hist. Avg.
58°
34°
16
Hist. Avg.
57°
34°
17
Hist. Avg.
57°
33°
18
Hist. Avg.
56°
33°
19
Hist. Avg.
56°
33°
20
Hist. Avg.
55°
32°
21
Hist. Avg.
55°
32°
22
Hist. Avg.
54°
31°
23
Hist. Avg.
54°
31°
24
Hist. Avg.
53°
31°
25
Hist. Avg.
53°
30°
26
Hist. Avg.
52°
30°
27
Hist. Avg.
51°
29°
28
Hist. Avg.
51°
29°
29
Hist. Avg.
50°
29°
30
Hist. Avg.
50°
28°
31
Hist. Avg.
49°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Merrillan
Merrillan's October 2026 forecast shows daily high temperatures ranging from 55° to 71°, with overnight lows between 33° and 44°. The average high for October is 63° with an average low of 40°. 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 Merrillan. See also: November | December | January.
