S
M
T
W
T
F
S
27
N/A
28
71°
60°
29
74°
60°
30
82°
56°
1
87°
62°
2
90°
62°
3
66°
59°
4
65°
60°
5
74°
57°
6
66°
46°
7
72°
45°
8
82°
52°
9
76°
48°
10
71°
49°
11
69°
62°
12
75°
60°
13
85°
55°
14
89°
64°
15
77°
61°
16
83°
60°
17
61°
43°
18
59°
37°
19
67°
38°
20
71°
43°
21
67°
41°
22
69°
44°
23
60°
36°
24
63°
37°
25
66°
39°
26
70°
46°
27
68°
45°
28
62°
40°
29
63°
41°
30
64°
41°
31
59°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Upper Marlboro
Upper Marlboro's October 2026 forecast shows daily high temperatures ranging from 59° to 71°, with overnight lows between 36° and 46°. The average high for October is 65° 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 Upper Marlboro. See also: November | December | January.
