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