S
M
T
W
T
F
S
31
68°
47°
1
71°
45°
2
74°
46°
3
77°
47°
4
76°
48°
5
73°
48°
6
74°
50°
7
81°
52°
8
83°
53°
9
84°
50°
10
84°
55°
11
85°
53°
12
85°
52°
13
83°
53°
14
77°
52°
15
86°
52°
16
87°
55°
17
87°
51°
18
88°
54°
19
79°
53°
20
80°
50°
21
79°
52°
22
83°
55°
23
83°
55°
24
85°
52°
25
80°
49°
26
78°
49°
27
81°
50°
28
81°
51°
29
83°
55°
30
88°
51°
1
88°
55°
2
87°
59°
3
90°
60°
4
92°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Boulder
Boulder's June 2026 forecast shows daily high temperatures ranging from 68° to 92°, with overnight lows between 45° and 60°. The average high for June is 82° with an average low of 52°. 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 Boulder. See also: July | August | September.
