S
M
T
W
T
F
S
29
68°
50°
30
64°
46°
1
62°
46°
2
63°
48°
3
62°
46°
4
62°
49°
5
62°
49°
6
68°
45°
7
64°
41°
8
62°
44°
9
63°
45°
10
62°
48°
11
67°
48°
12
68°
44°
13
67°
40°
14
60°
38°
15
58°
40°
16
58°
40°
17
59°
41°
18
58°
43°
19
60°
46°
20
60°
44°
21
61°
41°
22
61°
47°
23
62°
41°
24
59°
42°
25
59°
43°
26
62°
42°
27
60°
41°
28
60°
44°
29
61°
49°
30
62°
45°
31
65°
42°
1
64°
42°
2
63°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Stevenson Ranch
Stevenson Ranch's December 2026 forecast shows daily high temperatures ranging from 58° to 68°, with overnight lows between 38° and 50°. The average high for December is 62° with an average low of 44°. 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 Stevenson Ranch. See also: January | February | March.
