S
M
T
W
T
F
S
31
79°
47°
1
81°
55°
2
77°
51°
3
85°
54°
4
89°
53°
5
91°
60°
6
91°
65°
7
93°
68°
8
80°
61°
9
84°
59°
10
91°
71°
11
98°
73°
12
99°
72°
13
90°
71°
14
95°
65°
15
82°
68°
16
82°
56°
17
89°
64°
18
91°
72°
19
86°
69°
20
89°
60°
21
87°
66°
22
94°
69°
23
78°
60°
24
84°
60°
25
85°
69°
26
91°
68°
27
79°
68°
28
83°
67°
29
88°
66°
30
92°
67°
1
97°
72°
2
100°
73°
3
98°
71°
4
97°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Upper Marlboro
Upper Marlboro's June 2026 forecast shows daily high temperatures ranging from 79° to 100°, with overnight lows between 66° and 73°. The average high for June is 91° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Upper Marlboro. See also: July | August | September.
