S
M
T
W
T
F
S
26
67°
29°
27
73°
31°
28
67°
33°
29
64°
42°
30
50°
43°
1
57°
32°
2
48°
32°
3
51°
30°
4
70°
29°
5
82°
37°
6
62°
46°
7
59°
33°
8
55°
28°
9
53°
27°
10
65°
41°
11
58°
34°
12
56°
29°
13
44°
32°
14
54°
43°
15
60°
49°
16
77°
47°
17
80°
52°
18
77°
46°
19
88°
49°
20
83°
58°
21
63°
40°
22
68°
32°
23
66°
35°
24
N/A
25
67°
48°
26
78°
57°
27
76°
51°
28
64°
48°
29
62°
45°
30
61°
42°
31
65°
43°
1
66°
45°
2
68°
46°
3
73°
53°
4
74°
52°
5
72°
55°
6
73°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Lost River
Lost River's May 2026 forecast shows daily high temperatures ranging from 61° to 78°, with overnight lows between 42° and 57°. The average high for May is 69° with an average low of 49°. 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 Lost River. See also: June | July | August.
