S
M
T
W
T
F
S
26
85°
60°
27
85°
61°
28
80°
62°
29
88°
65°
30
79°
65°
1
68°
55°
2
74°
51°
3
76°
47°
4
80°
48°
5
83°
50°
6
88°
65°
7
79°
67°
8
75°
63°
9
68°
63°
10
81°
64°
11
87°
64°
12
69°
60°
13
82°
60°
14
83°
52°
15
83°
57°
16
89°
66°
17
90°
69°
18
91°
68°
19
92°
69°
20
91°
70°
21
89°
68°
22
90°
69°
23
87°
69°
24
90°
67°
25
89°
68°
26
90°
69°
27
94°
76°
28
90°
69°
29
91°
70°
30
91°
71°
31
89°
70°
1
91°
70°
2
92°
71°
3
92°
72°
4
91°
72°
5
92°
71°
6
92°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grimes
Grimes's May 2026 forecast shows daily high temperatures ranging from 83° to 94°, with overnight lows between 52° and 76°. The average high for May is 90° with an average low of 69°. 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 Grimes. See also: June | July | August.
