S
M
T
W
T
F
S
29
46°
28°
30
39°
24°
1
37°
25°
2
36°
29°
3
36°
23°
4
37°
18°
5
36°
23°
6
35°
22°
7
34°
20°
8
35°
17°
9
33°
15°
10
30°
14°
11
29°
23°
12
41°
21°
13
Hist. Avg.
37°
21°
14
Hist. Avg.
37°
21°
15
Hist. Avg.
36°
20°
16
Hist. Avg.
36°
20°
17
Hist. Avg.
36°
20°
18
Hist. Avg.
36°
20°
19
Hist. Avg.
35°
19°
20
Hist. Avg.
35°
19°
21
Hist. Avg.
35°
19°
22
Hist. Avg.
35°
18°
23
Hist. Avg.
34°
18°
24
Hist. Avg.
34°
18°
25
Hist. Avg.
34°
18°
26
Hist. Avg.
34°
17°
27
Hist. Avg.
34°
17°
28
Hist. Avg.
33°
17°
29
Hist. Avg.
33°
17°
30
Hist. Avg.
33°
16°
31
Hist. Avg.
33°
16°
1
Hist. Avg.
33°
16°
2
Hist. Avg.
32°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Peterborough
Peterborough's December 2026 forecast shows daily high temperatures ranging from 29° to 46°, with overnight lows between 14° and 29°. The average high for December is 36° with an average low of 22°. 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 Peterborough. See also: January | February | March.
