S
M
T
W
T
F
S
31
70°
34°
1
68°
44°
2
70°
38°
3
79°
52°
4
83°
56°
5
85°
63°
6
85°
60°
7
73°
54°
8
67°
48°
9
70°
52°
10
73°
54°
11
80°
59°
12
82°
56°
13
76°
55°
14
79°
54°
15
75°
58°
16
76°
53°
17
69°
50°
18
71°
56°
19
76°
56°
20
74°
55°
21
77°
51°
22
70°
50°
23
70°
50°
24
71°
56°
25
78°
59°
26
78°
57°
27
76°
52°
28
72°
52°
29
73°
53°
30
71°
51°
1
72°
53°
2
73°
52°
3
77°
55°
4
79°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Big Boulder
Big Boulder's June 2026 forecast shows daily high temperatures ranging from 67° to 85°, with overnight lows between 48° and 63°. The average high for June is 75° with an average low of 54°. 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 Big Boulder. See also: July | August | September.
