S
M
T
W
T
F
S
26
57°
37°
27
57°
38°
28
59°
46°
29
67°
48°
30
69°
48°
1
67°
45°
2
59°
43°
3
59°
41°
4
60°
39°
5
60°
48°
6
63°
49°
7
72°
50°
8
71°
48°
9
61°
46°
10
62°
50°
11
63°
48°
12
67°
50°
13
70°
51°
14
73°
51°
15
75°
54°
16
75°
53°
17
72°
51°
18
65°
49°
19
66°
49°
20
71°
54°
21
71°
55°
22
70°
45°
23
70°
47°
24
72°
47°
25
74°
49°
26
75°
50°
27
78°
51°
28
78°
52°
29
80°
53°
30
80°
52°
31
77°
52°
1
78°
57°
2
80°
52°
3
75°
59°
4
81°
60°
5
82°
60°
6
83°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Pecatonica
Pecatonica's May 2026 forecast shows daily high temperatures ranging from 57° to 83°, with overnight lows between 37° and 61°. The average high for May is 70° with an average low of 50°. 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 Pecatonica. See also: June | July | August.
