S
M
T
W
T
F
S
26
82°
44°
27
83°
47°
28
86°
47°
29
87°
51°
30
93°
47°
31
91°
44°
1
87°
45°
2
90°
47°
3
90°
48°
4
92°
43°
5
85°
46°
6
87°
43°
7
83°
41°
8
82°
44°
9
84°
48°
10
90°
46°
11
91°
47°
12
91°
46°
13
90°
42°
14
81°
42°
15
81°
40°
16
Hist. Avg.
86°
47°
17
Hist. Avg.
85°
47°
18
Hist. Avg.
85°
46°
19
Hist. Avg.
85°
46°
20
Hist. Avg.
85°
46°
21
Hist. Avg.
84°
46°
22
Hist. Avg.
84°
46°
23
Hist. Avg.
84°
46°
24
Hist. Avg.
84°
45°
25
Hist. Avg.
84°
45°
26
Hist. Avg.
83°
45°
27
Hist. Avg.
83°
45°
28
Hist. Avg.
83°
44°
29
Hist. Avg.
83°
44°
30
Hist. Avg.
82°
44°
31
Hist. Avg.
82°
44°
1
Hist. Avg.
82°
44°
2
Hist. Avg.
82°
43°
3
Hist. Avg.
82°
43°
4
Hist. Avg.
81°
43°
5
Hist. Avg.
81°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Fossil
Fossil's August 2026 forecast shows daily high temperatures ranging from 81° to 93°, with overnight lows between 40° and 51°. The average high for August is 87° with an average low of 45°. 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 Fossil. See also: September | October | November.
