S
M
T
W
T
F
S
27
35°
18°
28
34°
18°
29
35°
17°
30
36°
21°
31
40°
18°
1
40°
16°
2
34°
13°
3
31°
17°
4
32°
24°
5
38°
31°
6
43°
27°
7
49°
16°
8
48°
14°
9
32°
16°
10
32°
14°
11
35°
12°
12
31°
12°
13
29°
13°
14
30°
13°
15
29°
14°
16
33°
20°
17
40°
21°
18
38°
14°
19
40°
13°
20
30°
15°
21
32°
24°
22
39°
30°
23
43°
32°
24
47°
31°
25
49°
29°
26
47°
28°
27
45°
25°
28
43°
26°
29
41°
22°
30
36°
18°
31
40°
11°
1
36°
14°
2
Hist. Avg.
45°
25°
3
Hist. Avg.
45°
26°
4
Hist. Avg.
45°
26°
5
Hist. Avg.
45°
26°
6
Hist. Avg.
45°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Bethlehem
Bethlehem's January 2027 forecast shows daily high temperatures ranging from 29° to 49°, with overnight lows between 11° and 32°. The average high for January is 38° with an average low of 19°. 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 Bethlehem. See also: February | March | April.
