S
M
T
W
T
F
S
29
47°
33°
30
47°
31°
1
45°
31°
2
46°
32°
3
46°
33°
4
47°
31°
5
45°
34°
6
46°
32°
7
43°
32°
8
44°
38°
9
44°
38°
10
48°
39°
11
47°
40°
12
49°
39°
13
50°
40°
14
48°
41°
15
50°
41°
16
52°
39°
17
51°
38°
18
47°
35°
19
43°
33°
20
45°
33°
21
44°
31°
22
43°
34°
23
43°
36°
24
42°
37°
25
47°
38°
26
46°
37°
27
46°
35°
28
45°
34°
29
42°
32°
30
46°
38°
31
39°
30°
1
Hist. Avg.
46°
35°
2
Hist. Avg.
46°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Longview
Longview's December 2026 forecast shows daily high temperatures ranging from 39° to 52°, with overnight lows between 30° and 41°. The average high for December is 46° with an average low of 35°. 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 Longview. See also: January | February | March.
