S
M
T
W
T
F
S
29
57°
38°
30
58°
34°
1
57°
27°
2
43°
24°
3
47°
31°
4
55°
37°
5
50°
34°
6
43°
30°
7
42°
24°
8
40°
22°
9
41°
24°
10
43°
28°
11
46°
27°
12
52°
28°
13
48°
29°
14
45°
26°
15
45°
27°
16
44°
29°
17
43°
24°
18
42°
21°
19
41°
19°
20
38°
17°
21
37°
22°
22
41°
27°
23
42°
22°
24
41°
20°
25
39°
20°
26
40°
23°
27
41°
21°
28
41°
20°
29
40°
25°
30
40°
21°
31
41°
19°
1
39°
15°
2
38°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Isabella
Isabella's December 2026 forecast shows daily high temperatures ranging from 37° to 58°, with overnight lows between 15° and 38°. The average high for December is 44° with an average low of 25°. 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 Isabella. See also: January | February | March.
