S
M
T
W
T
F
S
29
53°
38°
30
61°
38°
1
58°
40°
2
59°
38°
3
60°
36°
4
50°
31°
5
58°
37°
6
58°
36°
7
52°
33°
8
47°
28°
9
46°
25°
10
45°
29°
11
44°
29°
12
45°
30°
13
44°
26°
14
41°
20°
15
43°
25°
16
45°
30°
17
46°
31°
18
45°
33°
19
52°
25°
20
50°
18°
21
45°
19°
22
38°
19°
23
41°
26°
24
41°
24°
25
48°
23°
26
41°
20°
27
41°
17°
28
40°
15°
29
40°
18°
30
43°
32°
31
51°
24°
1
55°
18°
2
41°
15°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Amherst
Amherst's December 2026 forecast shows daily high temperatures ranging from 38° to 61°, with overnight lows between 15° and 40°. The average high for December is 48° with an average low of 27°. 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 Amherst. See also: January | February | March.
