S
M
T
W
T
F
S
29
40°
26°
30
47°
35°
1
46°
39°
2
43°
38°
3
42°
38°
4
45°
39°
5
47°
38°
6
49°
38°
7
45°
34°
8
40°
32°
9
39°
30°
10
42°
28°
11
51°
28°
12
52°
26°
13
52°
21°
14
37°
25°
15
40°
24°
16
38°
26°
17
39°
32°
18
44°
33°
19
49°
34°
20
49°
34°
21
48°
33°
22
49°
35°
23
52°
33°
24
52°
20°
25
51°
18°
26
38°
19°
27
34°
27°
28
39°
33°
29
47°
34°
30
48°
36°
31
50°
36°
1
52°
26°
2
52°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Chester
Chester's December 2026 forecast shows daily high temperatures ranging from 34° to 52°, with overnight lows between 18° and 39°. The average high for December is 45° with an average low of 31°. 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 Chester. See also: January | February | March.
