S
M
T
W
T
F
S
29
48°
30°
30
50°
36°
1
49°
38°
2
47°
32°
3
57°
26°
4
49°
25°
5
40°
29°
6
44°
28°
7
51°
34°
8
55°
37°
9
40°
24°
10
54°
41°
11
56°
40°
12
Hist. Avg.
47°
32°
13
Hist. Avg.
47°
32°
14
Hist. Avg.
47°
32°
15
Hist. Avg.
46°
31°
16
Hist. Avg.
46°
31°
17
Hist. Avg.
46°
31°
18
Hist. Avg.
46°
31°
19
Hist. Avg.
45°
31°
20
Hist. Avg.
45°
30°
21
Hist. Avg.
45°
30°
22
Hist. Avg.
45°
30°
23
Hist. Avg.
45°
30°
24
Hist. Avg.
44°
30°
25
Hist. Avg.
44°
30°
26
Hist. Avg.
44°
30°
27
Hist. Avg.
44°
29°
28
Hist. Avg.
44°
29°
29
Hist. Avg.
44°
29°
30
Hist. Avg.
43°
29°
31
Hist. Avg.
43°
29°
1
Hist. Avg.
43°
28°
2
Hist. Avg.
43°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Prospect
Prospect's December 2026 forecast shows daily high temperatures ranging from 40° to 57°, with overnight lows between 24° and 41°. The average high for December is 49° 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 Prospect. See also: January | February | March.
