S
M
T
W
T
F
S
26
66°
43°
27
68°
52°
28
66°
54°
29
55°
39°
30
57°
37°
1
48°
34°
2
55°
30°
3
66°
45°
4
84°
52°
5
59°
46°
6
58°
36°
7
57°
41°
8
62°
48°
9
73°
51°
10
55°
41°
11
57°
42°
12
61°
46°
13
67°
51°
14
68°
52°
15
72°
52°
16
66°
49°
17
63°
50°
18
66°
50°
19
72°
51°
20
66°
46°
21
65°
47°
22
65°
47°
23
66°
50°
24
67°
50°
25
68°
50°
26
68°
50°
27
69°
50°
28
70°
52°
29
73°
56°
30
77°
57°
31
78°
59°
1
78°
57°
2
72°
56°
3
79°
60°
4
80°
61°
5
81°
61°
6
73°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Griffith
Griffith's May 2026 forecast shows daily high temperatures ranging from 55° to 81°, with overnight lows between 36° and 61°. The average high for May is 69° with an average low of 51°. 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 Griffith. See also: June | July | August.
