S
M
T
W
T
F
S
29
81°
67°
30
82°
67°
1
83°
66°
2
82°
68°
3
82°
61°
4
83°
60°
5
80°
65°
6
75°
66°
7
78°
63°
8
81°
60°
9
79°
59°
10
74°
59°
11
74°
60°
12
75°
58°
13
73°
59°
14
74°
59°
15
74°
64°
16
76°
65°
17
79°
64°
18
79°
59°
19
80°
59°
20
74°
57°
21
74°
56°
22
72°
57°
23
73°
62°
24
75°
59°
25
77°
57°
26
74°
58°
27
73°
64°
28
78°
63°
29
79°
60°
30
73°
63°
31
76°
56°
1
Hist. Avg.
75°
59°
2
Hist. Avg.
75°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Boynton Beach
Boynton Beach's December 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 56° and 68°. The average high for December is 77° with an average low of 61°. 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 Boynton Beach. See also: January | February | March.
