S
M
T
W
T
F
S
26
57°
42°
27
64°
42°
28
64°
42°
29
68°
37°
30
68°
37°
1
67°
31°
2
74°
36°
3
74°
43°
4
71°
46°
5
68°
50°
6
58°
36°
7
73°
33°
8
82°
42°
9
82°
45°
10
82°
42°
11
88°
37°
12
92°
44°
13
88°
51°
14
85°
60°
15
86°
50°
16
84°
54°
17
78°
52°
18
66°
41°
19
69°
40°
20
72°
43°
21
79°
38°
22
71°
44°
23
81°
40°
24
83°
47°
25
80°
48°
26
77°
47°
27
85°
49°
28
88°
52°
29
83°
45°
30
77°
45°
31
85°
57°
1
87°
57°
2
87°
56°
3
88°
57°
4
86°
61°
5
85°
59°
6
84°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Basin
Basin's May 2026 forecast shows daily high temperatures ranging from 77° to 88°, with overnight lows between 45° and 61°. The average high for May is 84° with an average low of 54°. 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 Basin. See also: June | July | August.
