S
M
T
W
T
F
S
28
12°
1°
29
36°
9°
30
43°
19°
31
52°
19°
1
52°
27°
2
46°
32°
3
50°
27°
4
57°
41°
5
55°
28°
6
50°
27°
7
46°
27°
8
34°
28°
9
30°
19°
10
41°
25°
11
54°
19°
12
52°
27°
13
52°
37°
14
50°
27°
15
52°
25°
16
27°
18°
17
36°
1°
18
36°
18°
19
34°
14°
20
36°
15°
21
28°
5°
22
23°
7°
23
7°
-8°
24
18°
-13°
25
10°
-8°
26
37°
-9°
27
41°
19°
28
39°
12°
29
36°
27°
30
34°
19°
31
50°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Newcastle
Newcastle'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 Newcastle. See also: February | March | April.
