S
M
T
W
T
F
S
27
34°
22°
28
33°
27°
29
46°
23°
30
45°
21°
31
35°
19°
1
35°
17°
2
36°
14°
3
32°
15°
4
29°
17°
5
30°
15°
6
30°
13°
7
29°
13°
8
29°
14°
9
30°
16°
10
31°
20°
11
43°
17°
12
42°
14°
13
29°
13°
14
30°
13°
15
31°
16°
16
31°
11°
17
32°
10°
18
26°
12°
19
27°
15°
20
30°
17°
21
34°
18°
22
34°
16°
23
33°
14°
24
33°
24°
25
37°
21°
26
44°
19°
27
37°
13°
28
31°
15°
29
31°
24°
30
35°
14°
31
39°
10°
1
34°
16°
2
30°
9°
3
31°
8°
4
29°
10°
5
29°
10°
6
33°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Dover
Dover's January 2027 forecast shows daily high temperatures ranging from 26° to 46°, with overnight lows between 8° and 27°. The average high for January is 33° with an average low of 16°. 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 Dover. See also: February | March | April.