S
M
T
W
T
F
S
29
46°
33°
30
45°
32°
1
46°
33°
2
46°
33°
3
47°
32°
4
48°
33°
5
44°
32°
6
46°
31°
7
48°
32°
8
50°
31°
9
42°
29°
10
41°
27°
11
41°
22°
12
46°
23°
13
44°
27°
14
50°
29°
15
52°
30°
16
51°
31°
17
50°
26°
18
44°
30°
19
40°
33°
20
44°
29°
21
47°
21°
22
47°
19°
23
38°
21°
24
39°
26°
25
44°
29°
26
44°
27°
27
40°
24°
28
39°
17°
29
39°
20°
30
40°
17°
31
38°
19°
1
38°
21°
2
39°
24°
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 38° to 52°, with overnight lows between 17° and 33°. The average high for December is 44° 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.
