S
M
T
W
T
F
S
26
93°
64°
27
93°
64°
28
95°
66°
29
97°
66°
30
94°
64°
31
95°
65°
1
99°
66°
2
99°
66°
3
98°
65°
4
95°
65°
5
92°
64°
6
96°
66°
7
97°
66°
8
98°
65°
9
96°
64°
10
98°
58°
11
92°
62°
12
96°
61°
13
97°
60°
14
99°
62°
15
98°
64°
16
99°
65°
17
99°
66°
18
100°
66°
19
100°
65°
20
99°
66°
21
99°
65°
22
98°
64°
23
98°
64°
24
97°
63°
25
97°
63°
26
98°
64°
27
98°
63°
28
93°
63°
29
96°
61°
30
94°
57°
31
91°
56°
1
90°
57°
2
91°
56°
3
90°
55°
4
89°
54°
5
88°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Thermalito
Thermalito's August 2026 forecast shows daily high temperatures ranging from 88° to 100°, with overnight lows between 53° and 66°. The average high for August is 96° with an average low of 63°. 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 Thermalito. See also: September | October | November.
