S
M
T
W
T
F
S
26
90°
73°
27
89°
73°
28
89°
75°
29
90°
77°
30
90°
76°
1
90°
77°
2
91°
76°
3
92°
77°
4
92°
77°
5
94°
74°
6
94°
73°
7
94°
74°
8
95°
75°
9
93°
77°
10
94°
75°
11
93°
74°
12
92°
78°
13
92°
78°
14
93°
79°
15
86°
75°
16
86°
74°
17
85°
75°
18
84°
78°
19
85°
78°
20
84°
77°
21
85°
78°
22
84°
78°
23
85°
77°
24
84°
78°
25
85°
78°
26
86°
78°
27
84°
78°
28
84°
78°
29
83°
79°
30
84°
78°
31
83°
79°
1
83°
79°
2
84°
78°
3
84°
79°
4
85°
80°
5
85°
80°
6
86°
79°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Black River
Black River's May 2026 forecast shows daily high temperatures ranging from 83° to 95°, with overnight lows between 73° and 80°. The average high for May is 87° with an average low of 77°. 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 Black River. See also: June | July | August.
