S
M
T
W
T
F
S
28
99°
55°
29
103°
60°
30
92°
62°
31
88°
50°
1
92°
48°
2
97°
53°
3
93°
59°
4
92°
55°
5
97°
53°
6
104°
58°
7
110°
67°
8
112°
71°
9
109°
67°
10
83°
56°
11
84°
45°
12
92°
50°
13
94°
54°
14
98°
58°
15
86°
56°
16
89°
49°
17
94°
54°
18
97°
59°
19
99°
62°
20
90°
53°
21
92°
58°
22
89°
47°
23
99°
53°
24
110°
66°
25
109°
71°
26
113°
72°
27
113°
74°
28
105°
67°
29
108°
69°
30
113°
72°
31
105°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Jamestown
Jamestown's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Jamestown. See also: February | March | April.
