S
M
T
W
T
F
S
29
63°
42°
30
64°
36°
1
54°
29°
2
48°
27°
3
51°
37°
4
56°
39°
5
52°
36°
6
48°
31°
7
48°
26°
8
45°
25°
9
46°
25°
10
46°
30°
11
51°
28°
12
56°
34°
13
54°
32°
14
51°
29°
15
49°
30°
16
48°
30°
17
47°
27°
18
45°
23°
19
44°
21°
20
43°
23°
21
45°
28°
22
51°
28°
23
45°
24°
24
43°
22°
25
43°
24°
26
44°
26°
27
44°
24°
28
45°
25°
29
45°
25°
30
46°
26°
31
46°
22°
1
43°
22°
2
43°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lehigh
Lehigh's December 2026 forecast shows daily high temperatures ranging from 43° to 64°, with overnight lows between 21° and 42°. The average high for December is 48° with an average low of 28°. 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 Lehigh. See also: January | February | March.
