S
M
T
W
T
F
S
26
94°
57°
27
90°
53°
28
93°
56°
29
94°
57°
30
96°
53°
31
98°
55°
1
100°
57°
2
101°
58°
3
107°
60°
4
103°
61°
5
98°
57°
6
101°
55°
7
106°
57°
8
108°
59°
9
105°
59°
10
99°
57°
11
94°
56°
12
94°
55°
13
84°
55°
14
84°
57°
15
88°
53°
16
94°
53°
17
95°
61°
18
99°
58°
19
101°
59°
20
95°
56°
21
92°
58°
22
91°
54°
23
97°
54°
24
95°
53°
25
92°
53°
26
93°
55°
27
91°
53°
28
90°
53°
29
91°
52°
30
89°
53°
31
86°
54°
1
90°
53°
2
89°
55°
3
93°
56°
4
86°
54°
5
88°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Ukiah
Ukiah's August 2026 forecast shows daily high temperatures ranging from 86° to 97°, with overnight lows between 52° and 56°. The average high for August is 91° with an average low of 54°. 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 Ukiah. See also: September | October | November.
