S
M
T
W
T
F
S
29
38°
22°
30
36°
22°
1
34°
21°
2
35°
19°
3
29°
20°
4
34°
21°
5
37°
20°
6
31°
18°
7
26°
18°
8
25°
17°
9
27°
13°
10
26°
12°
11
29°
19°
12
34°
18°
13
35°
18°
14
33°
17°
15
30°
19°
16
37°
20°
17
36°
15°
18
31°
12°
19
26°
13°
20
27°
14°
21
27°
10°
22
21°
10°
23
28°
18°
24
38°
19°
25
28°
6°
26
28°
2°
27
26°
11°
28
30°
8°
29
26°
8°
30
25°
3°
31
26°
3°
1
31°
8°
2
26°
16°
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 21° to 38°, with overnight lows between 2° and 22°. The average high for December is 30° with an average low of 15°. 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.
