S
M
T
W
T
F
S
27
67°
45°
28
63°
45°
29
63°
43°
30
62°
42°
31
61°
42°
1
62°
43°
2
62°
43°
3
63°
45°
4
64°
44°
5
65°
43°
6
65°
46°
7
64°
44°
8
64°
43°
9
63°
43°
10
65°
44°
11
64°
50°
12
64°
47°
13
67°
43°
14
66°
44°
15
67°
49°
16
68°
46°
17
65°
50°
18
65°
47°
19
66°
46°
20
65°
45°
21
64°
47°
22
64°
44°
23
65°
47°
24
68°
50°
25
67°
49°
26
66°
50°
27
67°
46°
28
67°
46°
29
67°
45°
30
Hist. Avg.
66°
51°
31
Hist. Avg.
66°
51°
1
Hist. Avg.
66°
51°
2
Hist. Avg.
66°
51°
3
Hist. Avg.
66°
51°
4
Hist. Avg.
66°
51°
5
Hist. Avg.
66°
51°
6
Hist. Avg.
66°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in National City
National City's January 2027 forecast shows daily high temperatures ranging from 61° to 68°, with overnight lows between 42° and 50°. The average high for January is 65° with an average low of 45°. 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 National City. See also: February | March | April.
