S
M
T
W
T
F
S
27
49°
25°
28
38°
27°
29
38°
32°
30
47°
31°
31
46°
34°
1
48°
35°
2
49°
31°
3
50°
28°
4
47°
21°
5
38°
19°
6
34°
22°
7
33°
27°
8
46°
26°
9
46°
24°
10
36°
21°
11
36°
16°
12
35°
18°
13
29°
17°
14
32°
16°
15
30°
19°
16
30°
18°
17
34°
17°
18
30°
17°
19
33°
13°
20
33°
17°
21
30°
29°
22
40°
28°
23
46°
22°
24
45°
20°
25
34°
24°
26
35°
25°
27
39°
26°
28
Hist. Avg.
39°
23°
29
Hist. Avg.
39°
23°
30
Hist. Avg.
39°
23°
31
Hist. Avg.
39°
23°
1
Hist. Avg.
39°
23°
2
Hist. Avg.
39°
23°
3
Hist. Avg.
39°
23°
4
Hist. Avg.
39°
23°
5
Hist. Avg.
39°
23°
6
Hist. Avg.
40°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Mastic
Mastic's January 2027 forecast shows daily high temperatures ranging from 29° to 50°, with overnight lows between 13° and 35°. The average high for January is 39° with an average low of 23°. 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 Mastic. See also: February | March | April.
