S
M
T
W
T
F
S
29
43°
26°
30
43°
26°
1
45°
29°
2
45°
30°
3
49°
36°
4
48°
34°
5
50°
32°
6
47°
29°
7
44°
34°
8
46°
29°
9
54°
32°
10
44°
26°
11
Hist. Avg.
46°
33°
12
Hist. Avg.
46°
33°
13
Hist. Avg.
46°
33°
14
Hist. Avg.
46°
32°
15
Hist. Avg.
46°
32°
16
Hist. Avg.
46°
32°
17
Hist. Avg.
46°
32°
18
Hist. Avg.
46°
32°
19
Hist. Avg.
45°
32°
20
Hist. Avg.
45°
32°
21
Hist. Avg.
45°
32°
22
Hist. Avg.
45°
32°
23
Hist. Avg.
45°
32°
24
Hist. Avg.
45°
32°
25
Hist. Avg.
46°
32°
26
Hist. Avg.
46°
32°
27
Hist. Avg.
46°
32°
28
Hist. Avg.
46°
32°
29
Hist. Avg.
46°
32°
30
Hist. Avg.
46°
32°
31
Hist. Avg.
46°
32°
1
Hist. Avg.
46°
32°
2
Hist. Avg.
46°
32°
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 43° to 54°, with overnight lows between 26° and 36°. The average high for December is 47° with an average low of 30°. 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.
