S
M
T
W
T
F
S
26
58°
41°
27
69°
41°
28
61°
43°
29
63°
52°
30
70°
46°
1
64°
43°
2
63°
43°
3
63°
41°
4
73°
47°
5
84°
63°
6
72°
55°
7
60°
48°
8
67°
52°
9
69°
54°
10
79°
63°
11
70°
53°
12
66°
49°
13
71°
56°
14
76°
60°
15
78°
61°
16
79°
61°
17
80°
60°
18
75°
58°
19
80°
62°
20
79°
63°
21
79°
63°
22
77°
55°
23
72°
55°
24
72°
57°
25
73°
59°
26
73°
59°
27
74°
57°
28
74°
60°
29
75°
57°
30
74°
61°
31
76°
66°
1
80°
66°
2
76°
63°
3
77°
65°
4
81°
67°
5
81°
66°
6
82°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Back River
Back River's May 2026 forecast shows daily high temperatures ranging from 60° to 84°, with overnight lows between 48° and 67°. The average high for May is 75° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Back River. See also: June | July | August.