S
M
T
W
T
F
S
26
64°
46°
27
64°
37°
28
71°
28°
29
79°
30°
30
76°
33°
1
86°
39°
2
87°
41°
3
83°
44°
4
77°
48°
5
67°
47°
6
76°
32°
7
87°
39°
8
89°
42°
9
89°
37°
10
94°
38°
11
99°
54°
12
96°
45°
13
79°
39°
14
78°
42°
15
77°
38°
16
76°
49°
17
71°
48°
18
76°
50°
19
80°
37°
20
86°
38°
21
86°
39°
22
86°
39°
23
83°
40°
24
80°
52°
25
80°
49°
26
76°
48°
27
70°
45°
28
69°
46°
29
78°
53°
30
81°
56°
31
86°
58°
1
88°
57°
2
87°
59°
3
86°
60°
4
85°
59°
5
84°
59°
6
90°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Jacumba
Jacumba's May 2026 forecast shows daily high temperatures ranging from 69° to 90°, with overnight lows between 45° and 60°. The average high for May is 81° 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 Jacumba. See also: June | July | August.
