S
M
T
W
T
F
S
27
88°
69°
28
82°
64°
29
84°
61°
30
86°
62°
1
90°
60°
2
101°
71°
3
99°
74°
4
99°
73°
5
100°
75°
6
99°
74°
7
99°
74°
8
94°
71°
9
90°
68°
10
82°
64°
11
66°
59°
12
62°
53°
13
71°
49°
14
81°
57°
15
88°
73°
16
90°
67°
17
91°
62°
18
89°
62°
19
88°
61°
20
76°
58°
21
72°
54°
22
75°
55°
23
76°
56°
24
78°
54°
25
79°
53°
26
79°
54°
27
78°
52°
28
80°
56°
29
81°
55°
30
81°
55°
31
80°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Montclair
Montclair's October 2026 forecast shows daily high temperatures ranging from 72° to 91°, with overnight lows between 52° and 73°. The average high for October is 81° with an average low of 58°. 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 Montclair. See also: November | December | January.
