S
M
T
W
T
F
S
27
38°
21°
28
38°
18°
29
39°
22°
30
41°
29°
31
46°
24°
1
49°
19°
2
39°
17°
3
35°
20°
4
38°
24°
5
45°
32°
6
50°
33°
7
56°
20°
8
57°
16°
9
38°
17°
10
35°
18°
11
40°
15°
12
36°
14°
13
34°
15°
14
35°
15°
15
34°
17°
16
38°
22°
17
47°
26°
18
45°
18°
19
51°
16°
20
35°
17°
21
37°
23°
22
46°
31°
23
50°
34°
24
52°
36°
25
55°
34°
26
54°
33°
27
51°
30°
28
50°
28°
29
44°
25°
30
41°
21°
31
47°
15°
1
56°
19°
2
Hist. Avg.
45°
26°
3
Hist. Avg.
46°
26°
4
Hist. Avg.
46°
26°
5
Hist. Avg.
46°
26°
6
Hist. Avg.
47°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Sidney
Sidney's January 2027 forecast shows daily high temperatures ranging from 34° to 57°, with overnight lows between 14° and 36°. The average high for January is 44° with an average low of 23°. 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 Sidney. See also: February | March | April.
