S
M
T
W
T
F
S
27
32°
21°
28
32°
13°
29
40°
10°
30
31°
9°
31
28°
14°
1
29°
20°
2
35°
11°
3
39°
13°
4
31°
19°
5
38°
22°
6
42°
25°
7
Hist. Avg.
35°
15°
8
Hist. Avg.
35°
15°
9
Hist. Avg.
34°
15°
10
Hist. Avg.
34°
14°
11
Hist. Avg.
34°
14°
12
Hist. Avg.
34°
14°
13
Hist. Avg.
34°
13°
14
Hist. Avg.
34°
13°
15
Hist. Avg.
33°
13°
16
Hist. Avg.
33°
13°
17
Hist. Avg.
33°
13°
18
Hist. Avg.
33°
13°
19
Hist. Avg.
33°
13°
20
Hist. Avg.
33°
13°
21
Hist. Avg.
33°
13°
22
Hist. Avg.
33°
13°
23
Hist. Avg.
33°
13°
24
Hist. Avg.
33°
13°
25
Hist. Avg.
33°
13°
26
Hist. Avg.
33°
13°
27
Hist. Avg.
34°
13°
28
Hist. Avg.
34°
14°
29
Hist. Avg.
34°
14°
30
Hist. Avg.
34°
14°
31
Hist. Avg.
34°
14°
1
Hist. Avg.
34°
14°
2
Hist. Avg.
34°
15°
3
Hist. Avg.
35°
15°
4
Hist. Avg.
35°
15°
5
Hist. Avg.
35°
15°
6
Hist. Avg.
35°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Waterbury
Waterbury's January 2027 forecast shows daily high temperatures ranging from 28° to 42°, with overnight lows between 9° and 25°. The average high for January is 34° 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 Waterbury. See also: February | March | April.
