S
M
T
W
T
F
S
26
60°
43°
27
73°
42°
28
69°
51°
29
54°
45°
30
54°
40°
1
45°
36°
2
42°
33°
3
59°
31°
4
71°
56°
5
65°
47°
6
54°
38°
7
54°
38°
8
61°
44°
9
62°
44°
10
62°
47°
11
60°
42°
12
59°
47°
13
64°
50°
14
63°
46°
15
63°
48°
16
68°
51°
17
72°
49°
18
72°
54°
19
71°
54°
20
75°
53°
21
73°
50°
22
67°
46°
23
65°
46°
24
67°
47°
25
67°
49°
26
68°
48°
27
68°
48°
28
69°
49°
29
68°
49°
30
69°
52°
31
75°
56°
1
70°
53°
2
72°
52°
3
75°
59°
4
76°
58°
5
76°
59°
6
81°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Crestline
Crestline's May 2026 forecast shows daily high temperatures ranging from 54° to 81°, with overnight lows between 38° and 61°. The average high for May is 68° 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 Crestline. See also: June | July | August.
