S
M
T
W
T
F
S
26
84°
63°
27
82°
61°
28
81°
61°
29
82°
62°
30
82°
62°
31
81°
61°
1
81°
63°
2
82°
63°
3
80°
64°
4
82°
67°
5
84°
63°
6
85°
65°
7
86°
65°
8
86°
66°
9
83°
63°
10
82°
62°
11
83°
61°
12
81°
61°
13
81°
63°
14
80°
63°
15
79°
64°
16
80°
62°
17
81°
62°
18
81°
65°
19
86°
65°
20
86°
66°
21
85°
66°
22
86°
65°
23
86°
65°
24
85°
60°
25
85°
60°
26
80°
61°
27
79°
63°
28
82°
64°
29
79°
63°
30
83°
66°
31
84°
65°
1
84°
59°
2
77°
56°
3
77°
59°
4
Hist. Avg.
79°
62°
5
Hist. Avg.
78°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fall River
Fall River's August 2026 forecast shows daily high temperatures ranging from 77° to 86°, with overnight lows between 56° and 67°. The average high for August is 82° 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 Fall River. See also: September | October | November.
