S
M
T
W
T
F
S
27
70°
61°
28
73°
62°
29
74°
57°
30
N/A
1
88°
56°
2
90°
61°
3
67°
56°
4
64°
56°
5
74°
46°
6
65°
39°
7
70°
47°
8
75°
52°
9
72°
46°
10
71°
47°
11
72°
49°
12
71°
50°
13
73°
47°
14
61°
42°
15
61°
41°
16
63°
46°
17
70°
51°
18
69°
51°
19
67°
50°
20
69°
45°
21
59°
41°
22
58°
42°
23
59°
41°
24
66°
46°
25
69°
47°
26
68°
39°
27
56°
36°
28
56°
38°
29
59°
45°
30
58°
44°
31
60°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Manassas
Manassas's October 2026 forecast shows daily high temperatures ranging from 56° to 90°, with overnight lows between 36° and 61°. The average high for October is 67° with an average low of 46°. 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 Manassas. See also: November | December | January.
