S
M
T
W
T
F
S
27
38°
21°
28
37°
19°
29
36°
23°
30
36°
21°
31
37°
18°
1
36°
13°
2
34°
18°
3
33°
28°
4
37°
31°
5
38°
30°
6
43°
18°
7
41°
15°
8
34°
16°
9
32°
19°
10
36°
15°
11
34°
13°
12
32°
13°
13
28°
14°
14
33°
14°
15
31°
15°
16
33°
17°
17
37°
15°
18
33°
14°
19
31°
16°
20
32°
20°
21
39°
27°
22
38°
29°
23
39°
29°
24
41°
25°
25
38°
24°
26
39°
26°
27
39°
26°
28
40°
21°
29
36°
20°
30
38°
17°
31
33°
11°
1
30°
24°
2
Hist. Avg.
45°
26°
3
Hist. Avg.
46°
26°
4
Hist. Avg.
46°
26°
5
Hist. Avg.
46°
26°
6
Hist. Avg.
46°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Olean
Olean's January 2027 forecast shows daily high temperatures ranging from 28° to 43°, with overnight lows between 11° and 31°. The average high for January is 36° with an average low of 20°. 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 Olean. See also: February | March | April.
