S
M
T
W
T
F
S
26
58°
41°
27
69°
41°
28
61°
43°
29
63°
52°
30
70°
46°
1
64°
50°
2
61°
44°
3
62°
46°
4
72°
57°
5
80°
61°
6
74°
58°
7
64°
49°
8
63°
47°
9
66°
54°
10
70°
54°
11
69°
55°
12
68°
58°
13
71°
56°
14
73°
57°
15
70°
59°
16
70°
58°
17
71°
60°
18
71°
62°
19
79°
63°
20
79°
62°
21
75°
63°
22
80°
63°
23
80°
64°
24
81°
64°
25
76°
60°
26
74°
63°
27
74°
65°
28
81°
66°
29
80°
65°
30
81°
66°
31
79°
65°
1
78°
61°
2
74°
60°
3
74°
59°
4
76°
59°
5
75°
60°
6
76°
60°
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 61° to 81°, with overnight lows between 44° and 66°. The average high for May is 73° 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.