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