S
M
T
W
T
F
S
26
87°
68°
27
86°
71°
28
81°
63°
29
76°
57°
30
74°
53°
1
69°
48°
2
68°
47°
3
75°
49°
4
77°
55°
5
79°
58°
6
79°
57°
7
80°
59°
8
81°
56°
9
76°
55°
10
82°
59°
11
83°
62°
12
84°
62°
13
79°
57°
14
75°
55°
15
76°
55°
16
77°
56°
17
78°
56°
18
81°
59°
19
81°
61°
20
82°
61°
21
84°
62°
22
85°
64°
23
86°
65°
24
87°
66°
25
87°
66°
26
86°
65°
27
82°
62°
28
84°
61°
29
85°
65°
30
86°
65°
31
87°
67°
1
89°
68°
2
90°
68°
3
90°
67°
4
89°
69°
5
90°
69°
6
90°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Griffithtown
Griffithtown's May 2026 forecast shows daily high temperatures ranging from 68° to 90°, with overnight lows between 47° and 71°. The average high for May is 82° 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 Griffithtown. See also: June | July | August.
