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
N/A
24
81°
59°
25
85°
60°
26
85°
62°
27
86°
62°
28
85°
62°
29
85°
56°
30
84°
58°
31
85°
59°
1
84°
59°
2
76°
56°
3
76°
55°
4
77°
56°
5
65°
49°
6
64°
50°
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 64° to 86°, with overnight lows between 49° and 62°. The average high for May is 80° 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.
