S
M
T
W
T
F
S
29
68°
46°
30
66°
46°
1
65°
44°
2
66°
47°
3
68°
46°
4
67°
47°
5
68°
51°
6
67°
48°
7
66°
51°
8
65°
47°
9
66°
50°
10
65°
44°
11
64°
44°
12
Hist. Avg.
70°
50°
13
Hist. Avg.
70°
50°
14
Hist. Avg.
70°
50°
15
Hist. Avg.
70°
50°
16
Hist. Avg.
70°
50°
17
Hist. Avg.
70°
50°
18
Hist. Avg.
70°
50°
19
Hist. Avg.
70°
50°
20
Hist. Avg.
70°
50°
21
Hist. Avg.
69°
50°
22
Hist. Avg.
69°
50°
23
Hist. Avg.
69°
49°
24
Hist. Avg.
69°
49°
25
Hist. Avg.
69°
49°
26
Hist. Avg.
69°
49°
27
Hist. Avg.
69°
49°
28
Hist. Avg.
69°
49°
29
Hist. Avg.
69°
49°
30
Hist. Avg.
69°
49°
31
Hist. Avg.
69°
49°
1
Hist. Avg.
69°
50°
2
Hist. Avg.
69°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Downey
Downey's December 2026 forecast shows daily high temperatures ranging from 64° to 68°, with overnight lows between 44° and 51°. The average high for December is 66° with an average low of 47°. 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 Downey. See also: January | February | March.
