S
M
T
W
T
F
S
27
38°
22°
28
38°
21°
29
37°
17°
30
36°
14°
31
34°
5°
1
31°
5°
2
28°
17°
3
31°
21°
4
39°
22°
5
39°
18°
6
38°
7°
7
36°
5°
8
27°
12°
9
28°
12°
10
36°
7°
11
35°
2°
12
27°
5°
13
24°
2°
14
28°
5°
15
24°
11°
16
32°
9°
17
30°
5°
18
27°
4°
19
27°
9°
20
34°
21°
21
38°
21°
22
39°
20°
23
39°
19°
24
38°
20°
25
37°
21°
26
36°
20°
27
38°
18°
28
36°
13°
29
35°
15°
30
35°
20°
31
Hist. Avg.
36°
13°
1
Hist. Avg.
36°
14°
2
Hist. Avg.
36°
14°
3
Hist. Avg.
36°
14°
4
Hist. Avg.
37°
14°
5
Hist. Avg.
37°
14°
6
Hist. Avg.
37°
14°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Jansen
Jansen's January 2027 forecast shows daily high temperatures ranging from 24° to 39°, with overnight lows between 2° and 22°. The average high for January is 34° with an average low of 13°. 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 Jansen. See also: February | March | April.
