S
M
T
W
T
F
S
31
79°
46°
1
78°
49°
2
79°
51°
3
79°
51°
4
78°
54°
5
79°
49°
6
78°
53°
7
80°
49°
8
63°
48°
9
64°
46°
10
63°
44°
11
63°
45°
12
65°
49°
13
65°
50°
14
67°
48°
15
65°
45°
16
66°
46°
17
66°
43°
18
67°
44°
19
67°
43°
20
68°
45°
21
67°
48°
22
67°
45°
23
70°
48°
24
76°
50°
25
70°
49°
26
69°
46°
27
70°
49°
28
69°
45°
29
71°
44°
30
78°
51°
1
81°
53°
2
81°
53°
3
83°
54°
4
83°
54°
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 63° to 83°, with overnight lows between 43° and 54°. The average high for June is 72° with an average low of 48°. 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.
