S
M
T
W
T
F
S
27
47°
31°
28
46°
27°
29
47°
26°
30
45°
24°
31
46°
23°
1
46°
23°
2
44°
29°
3
46°
26°
4
46°
21°
5
44°
21°
6
43°
22°
7
44°
25°
8
44°
29°
9
45°
28°
10
46°
26°
11
46°
20°
12
44°
20°
13
44°
22°
14
45°
29°
15
45°
28°
16
46°
28°
17
47°
21°
18
42°
19°
19
41°
31°
20
46°
34°
21
47°
31°
22
52°
26°
23
49°
36°
24
50°
32°
25
57°
25°
26
47°
23°
27
47°
23°
28
45°
30°
29
50°
24°
30
44°
19°
31
43°
18°
1
42°
21°
2
44°
18°
3
45°
17°
4
40°
24°
5
46°
25°
6
50°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Dennis
Dennis's January 2027 forecast shows daily high temperatures ranging from 40° to 57°, with overnight lows between 17° and 36°. The average high for January is 46° with an average low of 25°. 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 Dennis. See also: February | March | April.
