S
M
T
W
T
F
S
29
77°
54°
30
75°
53°
1
71°
52°
2
69°
53°
3
71°
52°
4
70°
55°
5
70°
60°
6
75°
61°
7
76°
60°
8
79°
52°
9
78°
54°
10
68°
58°
11
70°
57°
12
73°
60°
13
74°
58°
14
77°
50°
15
77°
50°
16
67°
53°
17
68°
56°
18
71°
58°
19
74°
58°
20
75°
57°
21
76°
58°
22
76°
59°
23
77°
59°
24
77°
58°
25
76°
57°
26
74°
56°
27
75°
57°
28
74°
56°
29
71°
50°
30
76°
47°
31
75°
46°
1
64°
48°
2
67°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Oldsmar
Oldsmar's December 2026 forecast shows daily high temperatures ranging from 64° to 79°, with overnight lows between 46° and 61°. The average high for December is 73° with an average low of 55°. 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 Oldsmar. See also: January | February | March.
