S
M
T
W
T
F
S
29
50°
30°
30
52°
36°
1
53°
42°
2
52°
44°
3
52°
43°
4
55°
43°
5
52°
42°
6
53°
42°
7
58°
40°
8
50°
33°
9
49°
28°
10
48°
35°
11
65°
33°
12
66°
28°
13
65°
26°
14
47°
27°
15
49°
26°
16
50°
27°
17
48°
34°
18
51°
42°
19
62°
42°
20
64°
40°
21
64°
38°
22
62°
44°
23
65°
37°
24
66°
25°
25
65°
24°
26
44°
25°
27
46°
26°
28
52°
39°
29
57°
41°
30
61°
42°
31
62°
44°
1
64°
35°
2
65°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Weir
Weir's December 2026 forecast shows daily high temperatures ranging from 44° to 66°, with overnight lows between 24° and 44°. The average high for December is 56° with an average low of 35°. 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 Weir. See also: January | February | March.
