S
M
T
W
T
F
S
31
85°
65°
1
87°
65°
2
87°
64°
3
85°
65°
4
84°
65°
5
86°
66°
6
87°
64°
7
88°
66°
8
86°
66°
9
84°
65°
10
84°
66°
11
88°
66°
12
89°
67°
13
89°
68°
14
90°
68°
15
87°
67°
16
85°
68°
17
90°
68°
18
90°
69°
19
87°
68°
20
85°
69°
21
86°
68°
22
88°
66°
23
86°
67°
24
87°
67°
25
88°
68°
26
87°
69°
27
88°
68°
28
87°
67°
29
87°
66°
30
91°
68°
1
88°
68°
2
92°
70°
3
93°
71°
4
93°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Great Falls
Great Falls's June 2026 forecast shows daily high temperatures ranging from 84° to 93°, with overnight lows between 64° and 71°. The average high for June is 88° with an average low of 67°. 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 Great Falls. See also: July | August | September.
