S
M
T
W
T
F
S
29
45°
33°
30
48°
35°
1
49°
34°
2
48°
34°
3
49°
32°
4
47°
31°
5
47°
31°
6
44°
32°
7
48°
30°
8
41°
28°
9
37°
28°
10
38°
25°
11
37°
29°
12
38°
26°
13
39°
24°
14
38°
18°
15
34°
19°
16
33°
22°
17
34°
20°
18
33°
27°
19
41°
26°
20
43°
22°
21
37°
19°
22
33°
19°
23
32°
17°
24
34°
23°
25
36°
17°
26
41°
12°
27
32°
13°
28
27°
14°
29
31°
12°
30
30°
17°
31
32°
24°
1
44°
18°
2
41°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Three Rivers
Three Rivers's December 2026 forecast shows daily high temperatures ranging from 27° to 49°, with overnight lows between 12° and 35°. The average high for December is 39° with an average low of 24°. 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 Three Rivers. See also: January | February | March.
