S
M
T
W
T
F
S
26
66°
34°
27
67°
37°
28
73°
36°
29
75°
40°
30
82°
42°
1
80°
50°
2
81°
55°
3
90°
55°
4
75°
52°
5
85°
53°
6
80°
50°
7
79°
49°
8
77°
51°
9
79°
48°
10
87°
53°
11
79°
51°
12
79°
50°
13
78°
51°
14
74°
46°
15
68°
44°
16
68°
47°
17
69°
44°
18
68°
46°
19
67°
43°
20
69°
44°
21
70°
43°
22
70°
45°
23
71°
44°
24
78°
47°
25
79°
50°
26
78°
51°
27
75°
48°
28
74°
49°
29
73°
50°
30
71°
51°
31
71°
50°
1
72°
44°
2
73°
48°
3
72°
46°
4
72°
46°
5
73°
51°
6
73°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grants Pass
Grants Pass's May 2026 forecast shows daily high temperatures ranging from 67° to 90°, with overnight lows between 43° and 55°. The average high for May is 75° with an average low of 48°. 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 Grants Pass. See also: June | July | August.
