S
M
T
W
T
F
S
26
64°
39°
27
70°
42°
28
72°
46°
29
73°
47°
30
73°
47°
1
74°
48°
2
75°
49°
3
74°
48°
4
75°
49°
5
73°
46°
6
63°
39°
7
62°
38°
8
63°
38°
9
64°
41°
10
73°
49°
11
74°
48°
12
77°
51°
13
79°
52°
14
79°
51°
15
71°
49°
16
77°
51°
17
78°
51°
18
72°
49°
19
70°
42°
20
68°
47°
21
74°
43°
22
69°
41°
23
68°
47°
24
73°
43°
25
69°
48°
26
72°
42°
27
72°
43°
28
69°
43°
29
70°
50°
30
76°
48°
31
78°
51°
1
77°
53°
2
83°
56°
3
84°
53°
4
79°
45°
5
74°
43°
6
72°
46°
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 62° to 84°, with overnight lows between 38° and 56°. The average high for May is 73° with an average low of 46°. 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.
