S
M
T
W
T
F
S
26
76°
57°
27
71°
51°
28
66°
51°
29
80°
58°
30
75°
52°
1
67°
51°
2
64°
45°
3
69°
39°
4
77°
42°
5
78°
55°
6
73°
60°
7
74°
51°
8
69°
46°
9
74°
51°
10
83°
55°
11
67°
48°
12
72°
43°
13
77°
45°
14
71°
49°
15
75°
43°
16
84°
48°
17
89°
58°
18
89°
64°
19
90°
67°
20
91°
61°
21
85°
66°
22
68°
57°
23
60°
56°
24
69°
57°
25
84°
66°
26
78°
67°
27
83°
65°
28
85°
63°
29
82°
65°
30
76°
58°
31
74°
58°
1
77°
56°
2
82°
59°
3
75°
60°
4
79°
62°
5
79°
61°
6
80°
63°
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 74° to 85°, with overnight lows between 56° and 67°. The average high for May is 79° with an average low of 61°. 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.
