S
M
T
W
T
F
S
26
57°
21°
27
61°
30°
28
63°
23°
29
66°
25°
30
73°
32°
1
79°
34°
2
77°
43°
3
79°
39°
4
79°
37°
5
79°
39°
6
81°
39°
7
77°
37°
8
72°
34°
9
79°
32°
10
77°
36°
11
79°
32°
12
88°
39°
13
63°
41°
14
68°
27°
15
64°
37°
16
54°
34°
17
59°
37°
18
67°
42°
19
70°
42°
20
73°
47°
21
74°
41°
22
73°
39°
23
74°
43°
24
72°
42°
25
68°
39°
26
63°
40°
27
69°
42°
28
69°
39°
29
67°
40°
30
64°
39°
31
67°
45°
1
73°
46°
2
74°
47°
3
75°
47°
4
75°
46°
5
74°
46°
6
74°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fossil
Fossil's May 2026 forecast shows daily high temperatures ranging from 54° to 75°, with overnight lows between 34° and 47°. The average high for May is 69° 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 Fossil. See also: June | July | August.
