S
M
T
W
T
F
S
26
58°
46°
27
59°
46°
28
71°
42°
29
73°
48°
30
71°
48°
1
77°
53°
2
80°
55°
3
66°
52°
4
60°
49°
5
60°
47°
6
71°
45°
7
81°
53°
8
82°
54°
9
86°
55°
10
90°
58°
11
95°
58°
12
82°
50°
13
81°
52°
14
81°
50°
15
84°
51°
16
83°
52°
17
87°
51°
18
82°
51°
19
81°
52°
20
78°
51°
21
77°
51°
22
81°
50°
23
84°
54°
24
83°
50°
25
77°
47°
26
76°
47°
27
76°
48°
28
78°
47°
29
77°
47°
30
77°
48°
31
78°
48°
1
81°
52°
2
86°
55°
3
86°
55°
4
87°
56°
5
86°
56°
6
87°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Calimesa
Calimesa's May 2026 forecast shows daily high temperatures ranging from 76° to 95°, with overnight lows between 47° and 58°. The average high for May is 82° with an average low of 52°. 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 Calimesa. See also: June | July | August.