S
M
T
W
T
F
S
29
35°
21°
30
36°
20°
1
33°
22°
2
35°
9°
3
33°
5°
4
26°
4°
5
20°
6°
6
19°
5°
7
20°
2°
8
21°
1°
9
17°
1°
10
16°
3°
11
19°
4°
12
19°
8°
13
21°
15°
14
25°
19°
15
32°
18°
16
32°
19°
17
31°
17°
18
33°
17°
19
32°
15°
20
32°
14°
21
29°
14°
22
27°
15°
23
28°
12°
24
29°
13°
25
27°
4°
26
23°
2°
27
23°
12°
28
26°
13°
29
29°
11°
30
15°
-7°
31
10°
-4°
1
Hist. Avg.
22°
1°
2
Hist. Avg.
22°
1°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Trego
Trego's December 2026 forecast shows daily high temperatures ranging from 10° to 36°, with overnight lows between -7° and 22°. The average high for December is 26° with an average low of 10°. 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 Trego. See also: January | February | March.