S
M
T
W
T
F
S
29
81°
75°
30
82°
71°
31
81°
71°
1
84°
72°
2
79°
74°
3
83°
72°
4
83°
71°
5
85°
75°
6
84°
76°
7
83°
74°
8
83°
75°
9
83°
71°
10
83°
75°
11
83°
71°
12
83°
67°
13
83°
74°
14
83°
76°
15
84°
76°
16
83°
76°
17
86°
75°
18
86°
76°
19
86°
75°
20
85°
73°
21
86°
73°
22
85°
75°
23
86°
75°
24
84°
73°
25
86°
74°
26
85°
74°
27
85°
75°
28
83°
75°
29
84°
76°
30
87°
75°
31
85°
77°
1
82°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Adelphi
Adelphi's January 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. 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 Adelphi. See also: February | March | April.