S
M
T
W
T
F
S
26
52°
42°
27
52°
43°
28
55°
34°
29
59°
33°
30
56°
34°
1
56°
33°
2
72°
31°
3
74°
47°
4
61°
35°
5
51°
29°
6
52°
32°
7
65°
40°
8
72°
47°
9
63°
38°
10
65°
38°
11
71°
48°
12
72°
43°
13
72°
49°
14
79°
48°
15
73°
50°
16
79°
55°
17
80°
53°
18
75°
50°
19
72°
53°
20
72°
47°
21
68°
45°
22
67°
46°
23
66°
49°
24
68°
52°
25
71°
54°
26
71°
54°
27
73°
53°
28
77°
55°
29
79°
56°
30
79°
56°
31
78°
55°
1
75°
54°
2
78°
58°
3
80°
57°
4
81°
53°
5
70°
50°
6
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Granite Falls
Granite Falls's May 2026 forecast shows daily high temperatures ranging from 63° to 81°, with overnight lows between 38° and 58°. The average high for May is 73° with an average low of 50°. 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 Granite Falls. See also: June | July | August.
