S
M
T
W
T
F
S
29
41°
29°
30
40°
29°
1
50°
25°
2
44°
29°
3
42°
24°
4
53°
20°
5
50°
20°
6
35°
21°
7
38°
22°
8
39°
19°
9
37°
17°
10
36°
17°
11
32°
19°
12
33°
20°
13
34°
19°
14
34°
19°
15
35°
23°
16
35°
23°
17
36°
20°
18
35°
29°
19
39°
27°
20
40°
23°
21
37°
21°
22
34°
18°
23
33°
16°
24
34°
21°
25
33°
19°
26
34°
21°
27
31°
21°
28
33°
19°
29
31°
16°
30
33°
15°
31
36°
11°
1
Hist. Avg.
39°
21°
2
Hist. Avg.
39°
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 31° to 53°, with overnight lows between 11° and 29°. The average high for December is 37° with an average low of 21°. 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.
