S
M
T
W
T
F
S
29
47°
34°
30
47°
31°
1
39°
28°
2
36°
29°
3
39°
32°
4
46°
33°
5
45°
32°
6
43°
31°
7
42°
30°
8
39°
30°
9
39°
27°
10
33°
27°
11
36°
29°
12
41°
31°
13
44°
30°
14
42°
28°
15
37°
28°
16
40°
29°
17
43°
30°
18
39°
15°
19
28°
23°
20
35°
24°
21
37°
26°
22
42°
21°
23
41°
20°
24
30°
21°
25
32°
22°
26
35°
23°
27
33°
28°
28
42°
25°
29
43°
18°
30
38°
12°
31
35°
16°
1
29°
23°
2
38°
11°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Fall River
Fall River's December 2026 forecast shows daily high temperatures ranging from 28° to 47°, with overnight lows between 11° and 34°. The average high for December is 39° with an average low of 26°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Fall River. See also: January | February | March.
