S
M
T
W
T
F
S
29
44°
27°
30
37°
26°
1
38°
24°
2
44°
27°
3
40°
28°
4
39°
25°
5
46°
26°
6
40°
19°
7
41°
21°
8
46°
26°
9
45°
22°
10
38°
22°
11
34°
14°
12
32°
15°
13
37°
15°
14
38°
17°
15
40°
22°
16
43°
21°
17
43°
24°
18
42°
27°
19
41°
19°
20
41°
28°
21
40°
18°
22
42°
14°
23
34°
10°
24
30°
13°
25
32°
17°
26
37°
24°
27
40°
23°
28
37°
25°
29
37°
24°
30
40°
18°
31
36°
12°
1
32°
11°
2
32°
14°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lehi
Lehi's December 2026 forecast shows daily high temperatures ranging from 30° to 46°, with overnight lows between 10° and 28°. The average high for December is 39° 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 Lehi. See also: January | February | March.
