S
M
T
W
T
F
S
29
80°
59°
30
79°
51°
1
76°
49°
2
69°
52°
3
70°
53°
4
72°
56°
5
74°
58°
6
77°
57°
7
78°
58°
8
76°
57°
9
78°
58°
10
78°
58°
11
79°
57°
12
79°
57°
13
78°
56°
14
76°
57°
15
76°
56°
16
77°
50°
17
76°
54°
18
69°
54°
19
72°
55°
20
73°
56°
21
77°
54°
22
76°
56°
23
76°
58°
24
78°
52°
25
78°
46°
26
77°
47°
27
67°
55°
28
74°
55°
29
72°
56°
30
74°
57°
31
77°
50°
1
78°
44°
2
76°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Riverview
Riverview's December 2026 forecast shows daily high temperatures ranging from 67° to 80°, with overnight lows between 44° and 59°. The average high for December is 75° with an average low of 54°. 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 Riverview. See also: January | February | March.