S
M
T
W
T
F
S
26
97°
71°
27
93°
73°
28
95°
74°
29
93°
73°
30
95°
76°
31
93°
77°
1
97°
77°
2
99°
78°
3
99°
74°
4
101°
77°
5
102°
78°
6
100°
77°
7
101°
77°
8
101°
77°
9
Hist. Avg.
97°
77°
10
Hist. Avg.
97°
77°
11
Hist. Avg.
97°
76°
12
Hist. Avg.
97°
76°
13
Hist. Avg.
97°
76°
14
Hist. Avg.
96°
76°
15
Hist. Avg.
96°
76°
16
Hist. Avg.
96°
76°
17
Hist. Avg.
96°
76°
18
Hist. Avg.
96°
76°
19
Hist. Avg.
96°
76°
20
Hist. Avg.
96°
76°
21
Hist. Avg.
95°
75°
22
Hist. Avg.
95°
75°
23
Hist. Avg.
95°
75°
24
Hist. Avg.
95°
75°
25
Hist. Avg.
94°
75°
26
Hist. Avg.
94°
74°
27
Hist. Avg.
94°
74°
28
Hist. Avg.
94°
74°
29
Hist. Avg.
94°
74°
30
Hist. Avg.
93°
74°
31
Hist. Avg.
93°
73°
1
Hist. Avg.
93°
73°
2
Hist. Avg.
92°
73°
3
Hist. Avg.
92°
72°
4
Hist. Avg.
92°
72°
5
Hist. Avg.
92°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Grapevine
Grapevine's August 2026 forecast shows daily high temperatures ranging from 93° to 102°, with overnight lows between 71° and 78°. The average high for August is 98° with an average low of 76°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Grapevine. See also: September | October | November.
