S
M
T
W
T
F
S
29
31°
16°
30
31°
17°
1
32°
21°
2
32°
27°
3
38°
28°
4
38°
22°
5
37°
18°
6
34°
16°
7
32°
19°
8
29°
19°
9
34°
23°
10
31°
22°
11
31°
20°
12
Hist. Avg.
34°
20°
13
Hist. Avg.
34°
20°
14
Hist. Avg.
34°
20°
15
Hist. Avg.
33°
20°
16
Hist. Avg.
33°
20°
17
Hist. Avg.
33°
20°
18
Hist. Avg.
33°
19°
19
Hist. Avg.
33°
19°
20
Hist. Avg.
32°
19°
21
Hist. Avg.
32°
19°
22
Hist. Avg.
32°
19°
23
Hist. Avg.
32°
19°
24
Hist. Avg.
32°
19°
25
Hist. Avg.
32°
19°
26
Hist. Avg.
32°
19°
27
Hist. Avg.
32°
19°
28
Hist. Avg.
32°
19°
29
Hist. Avg.
32°
19°
30
Hist. Avg.
32°
19°
31
Hist. Avg.
32°
19°
1
Hist. Avg.
32°
19°
2
Hist. Avg.
32°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Leavenworth
Leavenworth's December 2026 forecast shows daily high temperatures ranging from 29° to 38°, with overnight lows between 16° and 28°. The average high for December is 33° 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 Leavenworth. See also: January | February | March.
