S
M
T
W
T
F
S
29
44°
25°
30
37°
22°
1
35°
26°
2
34°
28°
3
38°
25°
4
37°
23°
5
34°
20°
6
33°
19°
7
32°
18°
8
29°
17°
9
30°
14°
10
29°
15°
11
27°
23°
12
35°
20°
13
31°
23°
14
Hist. Avg.
35°
22°
15
Hist. Avg.
35°
22°
16
Hist. Avg.
35°
21°
17
Hist. Avg.
34°
21°
18
Hist. Avg.
34°
21°
19
Hist. Avg.
34°
20°
20
Hist. Avg.
34°
20°
21
Hist. Avg.
33°
20°
22
Hist. Avg.
33°
20°
23
Hist. Avg.
33°
19°
24
Hist. Avg.
33°
19°
25
Hist. Avg.
32°
19°
26
Hist. Avg.
32°
18°
27
Hist. Avg.
32°
18°
28
Hist. Avg.
32°
18°
29
Hist. Avg.
32°
18°
30
Hist. Avg.
31°
18°
31
Hist. Avg.
31°
17°
1
Hist. Avg.
31°
17°
2
Hist. Avg.
31°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Swiftwater
Swiftwater's December 2026 forecast shows daily high temperatures ranging from 27° to 44°, with overnight lows between 14° and 28°. The average high for December is 34° 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 Swiftwater. See also: January | February | March.