S
M
T
W
T
F
S
26
98°
78°
27
96°
78°
28
96°
77°
29
97°
77°
30
97°
78°
31
98°
77°
1
99°
78°
2
98°
77°
3
99°
78°
4
100°
77°
5
101°
77°
6
100°
78°
7
100°
79°
8
99°
77°
9
99°
78°
10
100°
79°
11
100°
78°
12
Hist. Avg.
100°
79°
13
Hist. Avg.
100°
79°
14
Hist. Avg.
100°
79°
15
Hist. Avg.
100°
79°
16
Hist. Avg.
100°
79°
17
Hist. Avg.
100°
79°
18
Hist. Avg.
100°
79°
19
Hist. Avg.
100°
79°
20
Hist. Avg.
100°
79°
21
Hist. Avg.
99°
79°
22
Hist. Avg.
99°
79°
23
Hist. Avg.
99°
79°
24
Hist. Avg.
99°
79°
25
Hist. Avg.
99°
78°
26
Hist. Avg.
98°
78°
27
Hist. Avg.
98°
78°
28
Hist. Avg.
98°
78°
29
Hist. Avg.
98°
78°
30
Hist. Avg.
98°
78°
31
Hist. Avg.
97°
78°
1
Hist. Avg.
97°
78°
2
Hist. Avg.
97°
78°
3
Hist. Avg.
96°
78°
4
Hist. Avg.
96°
77°
5
Hist. Avg.
96°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Mission
Mission's August 2026 forecast shows daily high temperatures ranging from 96° to 101°, with overnight lows between 77° and 79°. The average high for August is 99° with an average low of 78°. 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 Mission. See also: September | October | November.
