S
M
T
W
T
F
S
29
53°
37°
30
50°
35°
1
50°
34°
2
48°
30°
3
48°
29°
4
47°
26°
5
46°
32°
6
48°
31°
7
55°
36°
8
56°
39°
9
52°
41°
10
60°
34°
11
61°
28°
12
51°
34°
13
Hist. Avg.
47°
26°
14
Hist. Avg.
47°
26°
15
Hist. Avg.
47°
26°
16
Hist. Avg.
47°
26°
17
Hist. Avg.
46°
26°
18
Hist. Avg.
46°
26°
19
Hist. Avg.
46°
26°
20
Hist. Avg.
46°
26°
21
Hist. Avg.
46°
25°
22
Hist. Avg.
46°
25°
23
Hist. Avg.
46°
25°
24
Hist. Avg.
46°
25°
25
Hist. Avg.
46°
25°
26
Hist. Avg.
46°
25°
27
Hist. Avg.
46°
25°
28
Hist. Avg.
46°
25°
29
Hist. Avg.
45°
25°
30
Hist. Avg.
45°
25°
31
Hist. Avg.
45°
25°
1
Hist. Avg.
45°
25°
2
Hist. Avg.
45°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Siloam Springs
Siloam Springs's December 2026 forecast shows daily high temperatures ranging from 46° to 61°, with overnight lows between 26° and 41°. The average high for December is 52° with an average low of 33°. 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 Siloam Springs. See also: January | February | March.
