S
M
T
W
T
F
S
30
41°
29°
1
43°
23°
2
35°
25°
3
45°
29°
4
40°
23°
5
27°
20°
6
40°
26°
7
40°
25°
8
36°
18°
9
33°
9°
10
41°
25°
11
40°
27°
12
35°
17°
13
40°
17°
14
32°
16°
15
24°
15°
16
30°
9°
17
46°
15°
18
49°
19°
19
57°
27°
20
38°
24°
21
45°
26°
22
38°
19°
23
37°
32°
24
49°
30°
25
52°
29°
26
28°
25°
27
34°
25°
28
33°
27°
29
48°
30°
30
32°
26°
31
32°
25°
1
34°
17°
2
30°
19°
3
30°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Exton
Exton's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. 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 Exton. See also: January | February | March.
