S
M
T
W
T
F
S
31
N/A
1
73°
42°
2
79°
47°
3
82°
48°
4
84°
60°
5
75°
55°
6
75°
56°
7
77°
57°
8
76°
55°
9
78°
55°
10
79°
56°
11
77°
53°
12
76°
53°
13
75°
55°
14
74°
50°
15
65°
46°
16
65°
46°
17
67°
48°
18
69°
53°
19
74°
55°
20
74°
56°
21
73°
56°
22
76°
55°
23
71°
53°
24
69°
49°
25
68°
50°
26
70°
57°
27
71°
56°
28
70°
55°
29
70°
54°
30
71°
53°
1
71°
58°
2
75°
59°
3
77°
58°
4
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Lewiston
Lewiston's June 2026 forecast shows daily high temperatures ranging from 65° to 84°, with overnight lows between 42° and 60°. The average high for June is 73° 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 Lewiston. See also: July | August | September.
