S
M
T
W
T
F
S
29
34°
23°
30
34°
21°
1
37°
26°
2
34°
15°
3
31°
14°
4
31°
18°
5
34°
25°
6
31°
20°
7
32°
19°
8
30°
14°
9
29°
14°
10
28°
13°
11
28°
23°
12
32°
24°
13
36°
24°
14
37°
19°
15
37°
22°
16
36°
18°
17
29°
12°
18
29°
11°
19
26°
10°
20
28°
19°
21
30°
19°
22
28°
15°
23
28°
22°
24
36°
22°
25
31°
16°
26
29°
11°
27
30°
10°
28
29°
7°
29
28°
5°
30
25°
7°
31
24°
19°
1
27°
18°
2
30°
14°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in River Heights
River Heights's December 2026 forecast shows daily high temperatures ranging from 24° to 37°, with overnight lows between 5° and 26°. The average high for December is 31° with an average low of 17°. 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 River Heights. See also: January | February | March.
