S
M
T
W
T
F
S
29
86°
73°
30
84°
72°
1
82°
72°
2
85°
71°
3
85°
73°
4
86°
73°
5
86°
72°
6
85°
73°
7
86°
73°
8
86°
72°
9
85°
72°
10
86°
71°
11
88°
70°
12
89°
71°
13
88°
71°
14
88°
70°
15
87°
71°
16
87°
70°
17
86°
70°
18
87°
70°
19
88°
71°
20
88°
71°
21
87°
70°
22
87°
70°
23
86°
71°
24
87°
70°
25
89°
71°
26
87°
70°
27
87°
70°
28
86°
69°
29
87°
69°
30
86°
68°
31
86°
69°
1
85°
70°
2
86°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Isabela
Isabela's December 2026 forecast shows daily high temperatures ranging from 82° to 89°, with overnight lows between 68° and 73°. The average high for December is 86° with an average low of 71°. 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 Isabela. See also: January | February | March.
