S
M
T
W
T
F
S
26
65°
40°
27
60°
39°
28
61°
41°
29
67°
46°
30
70°
50°
1
68°
49°
2
70°
49°
3
66°
46°
4
64°
41°
5
63°
41°
6
65°
50°
7
73°
52°
8
74°
50°
9
70°
46°
10
65°
42°
11
66°
50°
12
66°
49°
13
67°
51°
14
68°
53°
15
71°
53°
16
75°
54°
17
75°
54°
18
71°
47°
19
68°
44°
20
67°
47°
21
73°
55°
22
72°
48°
23
72°
47°
24
73°
50°
25
75°
51°
26
77°
47°
27
71°
48°
28
77°
48°
29
80°
52°
30
80°
50°
31
74°
52°
1
73°
54°
2
73°
48°
3
74°
54°
4
78°
58°
5
82°
58°
6
82°
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 60° to 82°, with overnight lows between 39° and 58°. The average high for May is 71° with an average low of 49°. 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.
