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