S
M
T
W
T
F
S
26
85°
65°
27
86°
73°
28
83°
70°
29
71°
63°
30
68°
58°
1
N/A
2
75°
46°
3
80°
57°
4
81°
62°
5
84°
72°
6
72°
48°
7
71°
46°
8
80°
53°
9
85°
57°
10
82°
60°
11
81°
59°
12
80°
61°
13
85°
62°
14
83°
63°
15
81°
59°
16
81°
63°
17
76°
62°
18
78°
63°
19
82°
64°
20
81°
64°
21
83°
58°
22
78°
56°
23
78°
57°
24
79°
58°
25
78°
58°
26
78°
57°
27
79°
58°
28
79°
59°
29
81°
63°
30
83°
65°
31
81°
66°
1
82°
66°
2
83°
64°
3
82°
67°
4
84°
67°
5
83°
68°
6
83°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Grapevine
Grapevine's May 2026 forecast shows daily high temperatures ranging from 71° to 85°, with overnight lows between 46° and 72°. The average high for May is 80° with an average low of 60°. 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.
