S
M
T
W
T
F
S
26
66°
38°
27
73°
38°
28
70°
52°
29
61°
50°
30
50°
41°
1
54°
31°
2
46°
35°
3
53°
38°
4
71°
47°
5
71°
45°
6
48°
42°
7
52°
35°
8
54°
38°
9
64°
38°
10
55°
40°
11
55°
34°
12
56°
36°
13
64°
44°
14
52°
43°
15
59°
46°
16
76°
44°
17
77°
57°
18
89°
60°
19
N/A
20
69°
40°
21
60°
38°
22
68°
45°
23
66°
50°
24
64°
52°
25
67°
51°
26
71°
53°
27
76°
54°
28
76°
54°
29
71°
54°
30
75°
55°
31
73°
57°
1
72°
50°
2
69°
54°
3
67°
54°
4
69°
55°
5
68°
55°
6
72°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Theresa
Theresa's May 2026 forecast shows daily high temperatures ranging from 60° to 76°, with overnight lows between 38° and 57°. The average high for May is 70° with an average low of 51°. 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 Theresa. See also: June | July | August.
