S
M
T
W
T
F
S
29
56°
33°
30
55°
34°
1
56°
36°
2
61°
39°
3
59°
39°
4
56°
35°
5
59°
35°
6
60°
36°
7
62°
38°
8
61°
39°
9
61°
38°
10
60°
40°
11
62°
41°
12
62°
40°
13
61°
40°
14
61°
37°
15
60°
34°
16
59°
34°
17
57°
35°
18
60°
36°
19
61°
34°
20
61°
34°
21
58°
35°
22
61°
35°
23
60°
36°
24
62°
40°
25
62°
42°
26
61°
30°
27
55°
34°
28
54°
40°
29
59°
39°
30
61°
40°
31
64°
40°
1
64°
41°
2
62°
30°
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 54° to 64°, with overnight lows between 30° and 42°. The average high for December is 60° with an average low of 37°. 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.
