S
M
T
W
T
F
S
26
54°
40°
27
59°
35°
28
66°
30°
29
72°
35°
30
77°
39°
1
74°
40°
2
73°
45°
3
77°
46°
4
63°
46°
5
77°
45°
6
80°
49°
7
75°
47°
8
78°
47°
9
84°
43°
10
83°
43°
11
86°
46°
12
83°
49°
13
69°
41°
14
77°
39°
15
71°
42°
16
61°
40°
17
61°
38°
18
68°
39°
19
74°
39°
20
77°
45°
21
81°
44°
22
85°
46°
23
80°
48°
24
80°
51°
25
76°
46°
26
65°
43°
27
65°
45°
28
75°
54°
29
75°
44°
30
78°
43°
31
83°
43°
1
87°
46°
2
89°
46°
3
89°
48°
4
91°
49°
5
87°
47°
6
80°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Big Bend
Big Bend's May 2026 forecast shows daily high temperatures ranging from 65° to 91°, with overnight lows between 43° and 54°. The average high for May is 80° with an average low of 46°. 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 Bend. See also: June | July | August.
