S
M
T
W
T
F
S
26
57°
36°
27
58°
31°
28
60°
33°
29
64°
37°
30
65°
40°
1
69°
32°
2
79°
35°
3
79°
47°
4
77°
48°
5
72°
44°
6
73°
32°
7
77°
54°
8
78°
51°
9
75°
46°
10
84°
43°
11
83°
57°
12
90°
51°
13
90°
47°
14
71°
40°
15
68°
43°
16
61°
39°
17
56°
36°
18
60°
32°
19
66°
38°
20
72°
45°
21
69°
42°
22
74°
35°
23
82°
48°
24
83°
61°
25
87°
55°
26
72°
47°
27
82°
37°
28
82°
55°
29
75°
50°
30
70°
45°
31
71°
46°
1
73°
45°
2
82°
49°
3
83°
52°
4
82°
54°
5
91°
57°
6
83°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Twin Falls
Twin Falls's May 2026 forecast shows daily high temperatures ranging from 70° to 91°, with overnight lows between 45° and 57°. The average high for May is 79° with an average low of 50°. 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 Twin Falls. See also: June | July | August.
