S
M
T
W
T
F
S
26
66°
50°
27
70°
45°
28
76°
46°
29
81°
47°
30
86°
52°
1
88°
54°
2
78°
52°
3
75°
54°
4
70°
53°
5
73°
53°
6
80°
55°
7
86°
54°
8
83°
55°
9
86°
58°
10
83°
54°
11
85°
55°
12
87°
56°
13
82°
52°
14
77°
51°
15
77°
52°
16
78°
52°
17
78°
50°
18
77°
54°
19
77°
49°
20
79°
52°
21
83°
55°
22
86°
56°
23
87°
58°
24
88°
58°
25
88°
57°
26
87°
57°
27
85°
56°
28
82°
54°
29
81°
54°
30
80°
53°
31
80°
53°
1
81°
54°
2
83°
54°
3
86°
56°
4
87°
58°
5
86°
57°
6
83°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Manteca
Manteca's May 2026 forecast shows daily high temperatures ranging from 70° to 88°, with overnight lows between 49° and 58°. 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 Manteca. See also: June | July | August.
