S
M
T
W
T
F
S
29
46°
24°
30
43°
23°
1
44°
29°
2
49°
32°
3
44°
29°
4
43°
26°
5
43°
24°
6
42°
24°
7
43°
25°
8
49°
31°
9
50°
26°
10
45°
27°
11
48°
31°
12
50°
30°
13
50°
31°
14
49°
31°
15
50°
24°
16
45°
25°
17
46°
26°
18
49°
25°
19
53°
26°
20
51°
24°
21
48°
24°
22
49°
27°
23
51°
27°
24
51°
33°
25
50°
28°
26
49°
19°
27
44°
22°
28
40°
28°
29
42°
25°
30
47°
28°
31
51°
31°
1
54°
26°
2
49°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Reno
Reno's December 2026 forecast shows daily high temperatures ranging from 40° to 54°, with overnight lows between 19° and 33°. The average high for December is 47° with an average low of 27°. 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 Reno. See also: January | February | March.
