S
M
T
W
T
F
S
26
67°
44°
27
64°
53°
28
60°
52°
29
58°
38°
30
59°
35°
1
52°
38°
2
53°
33°
3
63°
41°
4
77°
51°
5
54°
48°
6
55°
39°
7
59°
36°
8
64°
49°
9
74°
51°
10
65°
46°
11
64°
43°
12
81°
39°
13
62°
41°
14
68°
37°
15
71°
50°
16
79°
62°
17
85°
64°
18
82°
64°
19
81°
60°
20
65°
46°
21
70°
45°
22
73°
53°
23
76°
60°
24
82°
57°
25
82°
58°
26
82°
64°
27
79°
61°
28
81°
57°
29
80°
54°
30
74°
53°
31
73°
52°
1
79°
55°
2
76°
57°
3
79°
58°
4
80°
58°
5
78°
57°
6
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Watseka
Watseka's May 2026 forecast shows daily high temperatures ranging from 73° to 82°, with overnight lows between 52° and 64°. The average high for May is 79° with an average low of 58°. 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 Watseka. See also: June | July | August.