S
M
T
W
T
F
S
26
45°
36°
27
49°
33°
28
64°
44°
29
59°
44°
30
59°
46°
1
64°
43°
2
66°
44°
3
59°
42°
4
54°
41°
5
61°
41°
6
63°
40°
7
65°
41°
8
64°
42°
9
65°
40°
10
67°
42°
11
67°
43°
12
68°
44°
13
69°
44°
14
69°
43°
15
70°
44°
16
70°
44°
17
69°
43°
18
67°
38°
19
64°
38°
20
63°
40°
21
65°
40°
22
63°
41°
23
69°
45°
24
72°
46°
25
73°
46°
26
72°
47°
27
74°
47°
28
74°
46°
29
73°
47°
30
73°
46°
31
70°
44°
1
71°
43°
2
70°
43°
3
70°
41°
4
67°
40°
5
68°
41°
6
68°
42°
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 45° to 74°, with overnight lows between 33° and 47°. The average high for May is 66° with an average low of 43°. 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.
