S
M
T
W
T
F
S
26
76°
57°
27
78°
56°
28
84°
56°
29
89°
62°
30
93°
63°
1
93°
68°
2
96°
67°
3
96°
68°
4
80°
65°
5
79°
59°
6
88°
60°
7
99°
67°
8
103°
73°
9
105°
78°
10
107°
75°
11
109°
75°
12
107°
82°
13
100°
75°
14
99°
76°
15
102°
69°
16
98°
64°
17
94°
66°
18
92°
63°
19
98°
65°
20
100°
67°
21
102°
67°
22
100°
68°
23
95°
67°
24
97°
64°
25
96°
63°
26
96°
64°
27
99°
67°
28
100°
68°
29
93°
65°
30
95°
67°
31
101°
71°
1
104°
73°
2
104°
74°
3
105°
74°
4
105°
73°
5
98°
72°
6
99°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Big River
Big River's May 2026 forecast shows daily high temperatures ranging from 92° to 105°, with overnight lows between 63° and 74°. The average high for May is 99° with an average low of 68°. 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 Big River. See also: June | July | August.
