S
M
T
W
T
F
S
31
72°
55°
1
70°
54°
2
66°
55°
3
66°
52°
4
64°
54°
5
64°
54°
6
66°
52°
7
70°
55°
8
64°
48°
9
63°
46°
10
63°
43°
11
61°
46°
12
72°
59°
13
63°
54°
14
66°
45°
15
61°
45°
16
72°
57°
17
75°
61°
18
79°
59°
19
82°
59°
20
77°
59°
21
72°
54°
22
73°
55°
23
90°
57°
24
81°
61°
25
75°
51°
26
78°
52°
27
72°
55°
28
70°
46°
29
62°
49°
30
60°
56°
1
73°
56°
2
67°
54°
3
66°
56°
4
68°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Waltham
Waltham's June 2026 forecast shows daily high temperatures ranging from 60° to 78°, with overnight lows between 46° and 56°. The average high for June is 69° with an average low of 53°. 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 Waltham. See also: July | August | September.
