S
M
T
W
T
F
S
29
41°
23°
30
40°
23°
1
44°
22°
2
39°
21°
3
40°
22°
4
42°
30°
5
43°
25°
6
42°
22°
7
46°
29°
8
43°
30°
9
47°
30°
10
49°
28°
11
39°
26°
12
41°
27°
13
42°
29°
14
43°
27°
15
44°
30°
16
41°
24°
17
44°
29°
18
42°
30°
19
44°
29°
20
40°
30°
21
40°
18°
22
42°
18°
23
39°
29°
24
39°
31°
25
42°
32°
26
43°
31°
27
47°
30°
28
47°
31°
29
46°
28°
30
45°
23°
31
41°
23°
1
40°
20°
2
42°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Pleasant Grove
Pleasant Grove's December 2026 forecast shows daily high temperatures ranging from 39° to 49°, with overnight lows between 18° and 32°. The average high for December is 43° with an average low of 26°. 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 Pleasant Grove. See also: January | February | March.
