S
M
T
W
T
F
S
27
54°
38°
28
53°
35°
29
52°
34°
30
52°
32°
31
53°
34°
1
52°
35°
2
53°
38°
3
55°
37°
4
56°
36°
5
59°
39°
6
58°
42°
7
55°
38°
8
55°
37°
9
54°
42°
10
54°
43°
11
56°
38°
12
57°
36°
13
57°
36°
14
59°
42°
15
61°
43°
16
61°
43°
17
57°
44°
18
56°
43°
19
60°
39°
20
56°
41°
21
58°
42°
22
59°
40°
23
61°
44°
24
57°
43°
25
56°
42°
26
62°
45°
27
61°
40°
28
59°
38°
29
Hist. Avg.
60°
41°
30
Hist. Avg.
60°
41°
31
Hist. Avg.
60°
41°
1
Hist. Avg.
60°
42°
2
Hist. Avg.
60°
42°
3
Hist. Avg.
60°
42°
4
Hist. Avg.
60°
42°
5
Hist. Avg.
60°
42°
6
Hist. Avg.
61°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Atherton
Atherton's January 2027 forecast shows daily high temperatures ranging from 52° to 62°, with overnight lows between 32° and 45°. The average high for January is 57° with an average low of 39°. 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 Atherton. See also: February | March | April.