S
M
T
W
T
F
S
26
74°
55°
27
75°
57°
28
72°
56°
29
74°
55°
30
71°
51°
1
70°
56°
2
74°
56°
3
70°
52°
4
67°
53°
5
70°
52°
6
72°
52°
7
72°
51°
8
71°
52°
9
72°
54°
10
66°
51°
11
64°
53°
12
64°
49°
13
63°
46°
14
63°
46°
15
64°
47°
16
67°
49°
17
68°
51°
18
68°
49°
19
69°
51°
20
70°
52°
21
70°
51°
22
69°
46°
23
62°
46°
24
64°
50°
25
65°
50°
26
67°
49°
27
65°
45°
28
63°
46°
29
60°
41°
30
60°
42°
31
61°
45°
1
60°
48°
2
64°
47°
3
60°
48°
4
61°
48°
5
64°
49°
6
64°
49°
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 60° to 75°, with overnight lows between 41° and 57°. The average high for May is 67° 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 Griffith. See also: June | July | August.
