S
M
T
W
T
F
S
26
84°
69°
27
93°
74°
28
85°
69°
29
69°
60°
30
64°
57°
1
66°
55°
2
78°
50°
3
83°
56°
4
82°
62°
5
91°
62°
6
64°
53°
7
75°
53°
8
76°
61°
9
91°
68°
10
81°
63°
11
79°
59°
12
85°
59°
13
91°
62°
14
91°
68°
15
90°
69°
16
88°
70°
17
88°
75°
18
91°
78°
19
89°
63°
20
82°
63°
21
76°
68°
22
87°
68°
23
84°
65°
24
89°
68°
25
88°
66°
26
88°
67°
27
85°
67°
28
88°
69°
29
92°
72°
30
92°
75°
31
97°
76°
1
95°
75°
2
97°
74°
3
94°
70°
4
89°
70°
5
85°
72°
6
86°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grapevine
Grapevine's May 2026 forecast shows daily high temperatures ranging from 85° to 97°, with overnight lows between 70° and 76°. The average high for May is 92° with an average low of 73°. 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 Grapevine. See also: June | July | August.
