S
M
T
W
T
F
S
26
64°
41°
27
65°
42°
28
48°
44°
29
55°
34°
30
54°
32°
1
56°
36°
2
65°
43°
3
67°
42°
4
68°
44°
5
63°
35°
6
57°
33°
7
59°
35°
8
62°
39°
9
63°
39°
10
70°
44°
11
71°
46°
12
73°
47°
13
71°
46°
14
72°
47°
15
73°
48°
16
72°
44°
17
62°
37°
18
62°
39°
19
64°
44°
20
68°
48°
21
64°
42°
22
65°
49°
23
64°
46°
24
64°
39°
25
62°
38°
26
62°
39°
27
64°
41°
28
72°
49°
29
73°
49°
30
76°
46°
31
70°
44°
1
67°
46°
2
70°
45°
3
73°
44°
4
73°
42°
5
71°
45°
6
75°
47°
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 48° to 76°, with overnight lows between 32° and 49°. The average high for May is 66° with an average low of 42°. 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.
