S
M
T
W
T
F
S
29
54°
40°
30
56°
41°
1
56°
38°
2
53°
35°
3
51°
36°
4
51°
35°
5
52°
34°
6
51°
35°
7
50°
30°
8
49°
40°
9
54°
44°
10
55°
42°
11
63°
32°
12
46°
30°
13
47°
33°
14
Hist. Avg.
51°
32°
15
Hist. Avg.
50°
32°
16
Hist. Avg.
50°
32°
17
Hist. Avg.
50°
32°
18
Hist. Avg.
50°
32°
19
Hist. Avg.
50°
32°
20
Hist. Avg.
50°
32°
21
Hist. Avg.
50°
32°
22
Hist. Avg.
49°
31°
23
Hist. Avg.
49°
31°
24
Hist. Avg.
49°
31°
25
Hist. Avg.
49°
31°
26
Hist. Avg.
49°
31°
27
Hist. Avg.
49°
31°
28
Hist. Avg.
49°
31°
29
Hist. Avg.
48°
31°
30
Hist. Avg.
48°
31°
31
Hist. Avg.
48°
31°
1
Hist. Avg.
48°
30°
2
Hist. Avg.
48°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Thompson Grove
Thompson Grove's December 2026 forecast shows daily high temperatures ranging from 46° to 63°, with overnight lows between 30° and 44°. The average high for December is 53° with an average low of 36°. 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 Thompson Grove. See also: January | February | March.
