S
M
T
W
T
F
S
29
57°
40°
30
57°
37°
1
58°
40°
2
62°
45°
3
58°
44°
4
57°
41°
5
60°
40°
6
61°
40°
7
61°
42°
8
60°
43°
9
60°
41°
10
59°
41°
11
60°
44°
12
60°
43°
13
59°
44°
14
58°
43°
15
59°
38°
16
56°
39°
17
57°
38°
18
59°
38°
19
60°
40°
20
59°
40°
21
57°
39°
22
59°
42°
23
58°
39°
24
59°
45°
25
58°
43°
26
59°
34°
27
53°
38°
28
51°
42°
29
52°
41°
30
58°
42°
31
59°
44°
1
61°
39°
2
58°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Hilmar-Irwin
Hilmar-Irwin's December 2026 forecast shows daily high temperatures ranging from 51° to 62°, with overnight lows between 34° and 45°. The average high for December is 58° with an average low of 41°. 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 Hilmar-Irwin. See also: January | February | March.
