S
M
T
W
T
F
S
26
74°
43°
27
71°
45°
28
74°
48°
29
68°
50°
30
57°
38°
1
65°
30°
2
51°
37°
3
57°
31°
4
69°
35°
5
74°
38°
6
67°
54°
7
59°
41°
8
66°
31°
9
69°
37°
10
75°
40°
11
62°
39°
12
70°
31°
13
68°
37°
14
50°
41°
15
67°
37°
16
74°
42°
17
83°
50°
18
89°
56°
19
89°
58°
20
81°
60°
21
70°
55°
22
63°
53°
23
72°
57°
24
77°
56°
25
75°
58°
26
73°
57°
27
76°
57°
28
76°
56°
29
77°
54°
30
77°
54°
31
78°
52°
1
78°
56°
2
78°
57°
3
75°
56°
4
75°
55°
5
72°
52°
6
75°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Caldwell
Caldwell's May 2026 forecast shows daily high temperatures ranging from 63° to 89°, with overnight lows between 52° and 60°. The average high for May is 76° with an average low of 56°. 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 Caldwell. See also: June | July | August.
