S
M
T
W
T
F
S
26
55°
35°
27
59°
37°
28
65°
33°
29
63°
33°
30
52°
26°
1
71°
26°
2
74°
34°
3
78°
45°
4
71°
36°
5
41°
32°
6
45°
32°
7
71°
42°
8
68°
40°
9
71°
38°
10
71°
41°
11
80°
40°
12
78°
45°
13
81°
47°
14
79°
46°
15
80°
49°
16
71°
40°
17
70°
42°
18
75°
45°
19
70°
38°
20
73°
40°
21
67°
37°
22
68°
43°
23
75°
45°
24
67°
41°
25
66°
38°
26
68°
40°
27
69°
44°
28
68°
43°
29
69°
47°
30
69°
44°
31
68°
45°
1
70°
43°
2
74°
44°
3
77°
45°
4
76°
46°
5
73°
46°
6
74°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Berthoud
Berthoud's May 2026 forecast shows daily high temperatures ranging from 41° to 81°, with overnight lows between 32° and 49°. The average high for May is 71° with an average low of 42°. 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 Berthoud. See also: June | July | August.
