S
M
T
W
T
F
S
26
91°
62°
27
92°
62°
28
87°
61°
29
89°
62°
30
92°
62°
31
94°
61°
1
90°
61°
2
90°
60°
3
91°
61°
4
93°
61°
5
94°
60°
6
94°
61°
7
95°
59°
8
87°
57°
9
86°
57°
10
89°
58°
11
95°
57°
12
94°
55°
13
90°
51°
14
86°
53°
15
86°
53°
16
90°
55°
17
91°
56°
18
93°
55°
19
94°
54°
20
93°
49°
21
85°
47°
22
85°
47°
23
86°
48°
24
83°
45°
25
82°
49°
26
88°
51°
27
91°
53°
28
92°
55°
29
93°
53°
30
92°
54°
31
93°
53°
1
92°
52°
2
91°
50°
3
89°
50°
4
88°
52°
5
88°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Surprise Valley
Surprise Valley's August 2026 forecast shows daily high temperatures ranging from 82° to 95°, with overnight lows between 45° and 62°. The average high for August is 90° with an average low of 55°. 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 Surprise Valley. See also: September | October | November.
