S
M
T
W
T
F
S
26
49°
29°
27
56°
33°
28
61°
37°
29
62°
38°
30
63°
40°
1
64°
40°
2
65°
41°
3
64°
39°
4
63°
39°
5
62°
41°
6
66°
35°
7
54°
28°
8
52°
29°
9
60°
37°
10
65°
41°
11
64°
41°
12
64°
40°
13
66°
42°
14
67°
42°
15
67°
40°
16
64°
42°
17
67°
42°
18
60°
36°
19
61°
38°
20
63°
42°
21
64°
40°
22
65°
37°
23
66°
42°
24
71°
45°
25
70°
39°
26
65°
46°
27
70°
47°
28
72°
47°
29
72°
46°
30
71°
45°
31
72°
45°
1
72°
38°
2
67°
36°
3
64°
37°
4
63°
39°
5
65°
40°
6
69°
44°
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 49° to 72°, with overnight lows between 28° and 47°. The average high for May is 64° with an average low of 40°. 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.
