S
M
T
W
T
F
S
26
72°
39°
27
75°
39°
28
66°
52°
29
72°
52°
30
75°
50°
1
73°
48°
2
73°
48°
3
64°
54°
4
55°
52°
5
64°
52°
6
59°
50°
7
64°
45°
8
72°
43°
9
73°
48°
10
64°
54°
11
64°
52°
12
59°
46°
13
63°
45°
14
55°
45°
15
52°
41°
16
55°
39°
17
64°
34°
18
64°
45°
19
70°
41°
20
72°
50°
21
77°
46°
22
82°
50°
23
82°
52°
24
86°
54°
25
N/A
26
84°
57°
27
86°
57°
28
86°
56°
29
85°
57°
30
85°
59°
31
87°
59°
1
85°
60°
2
84°
59°
3
80°
58°
4
75°
54°
5
74°
55°
6
80°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Grenoble
Grenoble's May 2026 forecast shows daily high temperatures ranging from 74° to 87°, with overnight lows between 54° and 60°. The average high for May is 83° with an average low of 57°. 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.
