S
M
T
W
T
F
S
26
55°
45°
27
56°
43°
28
68°
40°
29
72°
46°
30
78°
52°
1
81°
57°
2
81°
58°
3
70°
50°
4
56°
46°
5
58°
46°
6
77°
46°
7
86°
57°
8
87°
60°
9
88°
60°
10
94°
63°
11
90°
63°
12
91°
58°
13
76°
56°
14
82°
54°
15
82°
56°
16
74°
52°
17
69°
51°
18
68°
49°
19
77°
55°
20
86°
57°
21
86°
57°
22
83°
55°
23
85°
54°
24
84°
53°
25
78°
51°
26
75°
52°
27
76°
51°
28
82°
53°
29
77°
51°
30
79°
53°
31
80°
51°
1
82°
52°
2
85°
56°
3
86°
56°
4
86°
55°
5
85°
56°
6
86°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cajon Junction
Cajon Junction's May 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 51° and 57°. The average high for May is 82° with an average low of 54°. 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 Cajon Junction. See also: June | July | August.
