S
M
T
W
T
F
S
26
76°
46°
27
77°
47°
28
70°
54°
29
74°
53°
30
73°
54°
1
76°
51°
2
75°
50°
3
67°
55°
4
59°
54°
5
64°
53°
6
62°
43°
7
69°
45°
8
75°
50°
9
80°
54°
10
69°
54°
11
71°
50°
12
61°
45°
13
67°
46°
14
66°
49°
15
63°
48°
16
69°
49°
17
72°
49°
18
74°
50°
19
65°
47°
20
67°
46°
21
71°
52°
22
72°
48°
23
66°
47°
24
68°
48°
25
71°
51°
26
72°
52°
27
73°
54°
28
71°
54°
29
72°
53°
30
74°
54°
31
73°
55°
1
73°
55°
2
77°
54°
3
77°
54°
4
76°
55°
5
74°
56°
6
75°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grenoble
Grenoble's May 2026 forecast shows daily high temperatures ranging from 61° to 80°, with overnight lows between 43° and 57°. The average high for May is 71° with an average low of 51°. 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 Grenoble. See also: June | July | August.
