S
M
T
W
T
F
S
29
45°
28°
30
42°
27°
1
41°
29°
2
41°
37°
3
51°
34°
4
54°
29°
5
45°
30°
6
41°
31°
7
46°
32°
8
48°
35°
9
46°
27°
10
48°
34°
11
49°
37°
12
Hist. Avg.
43°
29°
13
Hist. Avg.
43°
29°
14
Hist. Avg.
43°
28°
15
Hist. Avg.
42°
28°
16
Hist. Avg.
42°
28°
17
Hist. Avg.
42°
28°
18
Hist. Avg.
42°
27°
19
Hist. Avg.
41°
27°
20
Hist. Avg.
41°
27°
21
Hist. Avg.
41°
27°
22
Hist. Avg.
40°
26°
23
Hist. Avg.
40°
26°
24
Hist. Avg.
40°
26°
25
Hist. Avg.
40°
26°
26
Hist. Avg.
40°
26°
27
Hist. Avg.
39°
25°
28
Hist. Avg.
39°
25°
29
Hist. Avg.
39°
25°
30
Hist. Avg.
39°
25°
31
Hist. Avg.
39°
24°
1
Hist. Avg.
38°
24°
2
Hist. Avg.
38°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Purchase
Purchase's December 2026 forecast shows daily high temperatures ranging from 41° to 54°, with overnight lows between 27° and 37°. The average high for December is 46° with an average low of 32°. 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 Purchase. See also: January | February | March.