S
M
T
W
T
F
S
31
89°
69°
1
88°
69°
2
84°
66°
3
82°
61°
4
82°
58°
5
85°
58°
6
85°
61°
7
77°
70°
8
84°
72°
9
90°
70°
10
91°
70°
11
92°
70°
12
87°
68°
13
91°
66°
14
89°
70°
15
81°
66°
16
84°
68°
17
92°
75°
18
86°
70°
19
82°
65°
20
89°
69°
21
86°
70°
22
83°
67°
23
84°
64°
24
85°
65°
25
86°
65°
26
86°
67°
27
86°
68°
28
89°
69°
29
88°
68°
30
84°
65°
1
85°
64°
2
87°
69°
3
89°
69°
4
89°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Smithsonia
Smithsonia's June 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 64° and 75°. The average high for June is 86° with an average low of 68°. 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 Smithsonia. See also: July | August | September.