S
M
T
W
T
F
S
29
52°
38°
30
53°
37°
1
52°
38°
2
53°
36°
3
43°
34°
4
45°
31°
5
50°
35°
6
51°
35°
7
42°
31°
8
39°
24°
9
37°
22°
10
37°
25°
11
38°
33°
12
40°
30°
13
42°
28°
14
37°
19°
15
37°
24°
16
38°
30°
17
42°
31°
18
44°
28°
19
45°
22°
20
40°
20°
21
36°
18°
22
34°
22°
23
35°
28°
24
38°
26°
25
37°
20°
26
36°
15°
27
33°
18°
28
33°
14°
29
34°
14°
30
33°
25°
31
39°
21°
1
40°
16°
2
33°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Old Washington
Old Washington's December 2026 forecast shows daily high temperatures ranging from 33° to 53°, with overnight lows between 12° and 38°. The average high for December is 41° with an average low of 26°. 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 Old Washington. See also: January | February | March.
