S
M
T
W
T
F
S
27
N/A
28
74°
47°
29
78°
50°
30
81°
58°
1
87°
66°
2
76°
51°
3
70°
46°
4
76°
43°
5
71°
46°
6
72°
45°
7
83°
50°
8
78°
48°
9
82°
46°
10
72°
53°
11
76°
56°
12
87°
54°
13
88°
67°
14
75°
66°
15
71°
63°
16
70°
46°
17
54°
35°
18
62°
32°
19
66°
37°
20
N/A
21
73°
40°
22
73°
43°
23
74°
45°
24
72°
47°
25
76°
45°
26
72°
46°
27
67°
43°
28
63°
39°
29
65°
38°
30
61°
41°
31
56°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Rockville
Rockville's October 2026 forecast shows daily high temperatures ranging from 56° to 76°, with overnight lows between 38° and 47°. The average high for October is 68° with an average low of 42°. 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 Rockville. See also: November | December | January.