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°
59°
8
107°
60°
9
106°
58°
10
103°
57°
11
99°
59°
12
101°
59°
13
96°
60°
14
90°
58°
15
92°
57°
16
94°
57°
17
89°
58°
18
90°
56°
19
93°
57°
20
102°
58°
21
92°
57°
22
91°
56°
23
89°
57°
24
94°
57°
25
93°
56°
26
93°
58°
27
92°
57°
28
92°
56°
29
90°
57°
30
89°
56°
31
90°
55°
1
88°
54°
2
91°
56°
3
93°
56°
4
87°
55°
5
88°
55°
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 87° to 107°, with overnight lows between 54° and 60°. The average high for August is 94° with an average low of 57°. 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.
