S
M
T
W
T
F
S
26
93°
77°
27
93°
77°
28
93°
78°
29
94°
76°
30
95°
79°
1
N/A
2
93°
74°
3
95°
76°
4
93°
73°
5
96°
75°
6
94°
76°
7
99°
77°
8
96°
75°
9
95°
74°
10
96°
68°
11
95°
74°
12
95°
74°
13
94°
75°
14
95°
68°
15
94°
68°
16
94°
69°
17
95°
68°
18
95°
67°
19
94°
68°
20
94°
67°
21
95°
68°
22
95°
68°
23
96°
69°
24
95°
68°
25
95°
68°
26
96°
69°
27
95°
69°
28
94°
68°
29
94°
67°
30
94°
68°
31
94°
68°
1
95°
69°
2
95°
68°
3
96°
68°
4
94°
69°
5
94°
69°
6
95°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Santo Tomas
Santo Tomas's May 2026 forecast shows daily high temperatures ranging from 93° to 99°, with overnight lows between 67° and 77°. The average high for May is 95° with an average low of 70°. 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 Santo Tomas. See also: June | July | August.