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