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