S
M
T
W
T
F
S
26
N/A
27
N/A
28
N/A
29
N/A
30
N/A
1
N/A
2
N/A
3
N/A
4
N/A
5
N/A
6
N/A
7
N/A
8
N/A
9
N/A
10
N/A
11
N/A
12
N/A
13
N/A
14
N/A
15
N/A
16
N/A
17
N/A
18
92°
62°
19
93°
63°
20
91°
64°
21
79°
54°
22
70°
57°
23
79°
61°
24
80°
62°
25
79°
61°
26
76°
60°
27
78°
60°
28
78°
60°
29
79°
58°
30
81°
57°
31
80°
58°
1
84°
62°
2
84°
62°
3
83°
61°
4
79°
62°
5
80°
60°
6
82°
62°
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 70° to 93°, with overnight lows between 54° and 64°. The average high for May is 81° with an average low of 60°. 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.
