S
M
T
W
T
F
S
27
25°
20°
28
29°
21°
29
35°
20°
30
35°
23°
31
37°
24°
1
37°
17°
2
38°
10°
3
39°
7°
4
21°
6°
5
20°
9°
6
21°
16°
7
29°
13°
8
28°
16°
9
28°
6°
10
30°
3°
11
24°
4°
12
19°
0°
13
21°
-1°
14
15°
1°
15
16°
4°
16
19°
9°
17
24°
12°
18
29°
10°
19
30°
15°
20
27°
17°
21
31°
18°
22
31°
15°
23
30°
14°
24
27°
12°
25
28°
16°
26
31°
18°
27
29°
16°
28
31°
16°
29
31°
18°
30
Hist. Avg.
26°
10°
31
Hist. Avg.
27°
10°
1
Hist. Avg.
27°
10°
2
Hist. Avg.
27°
10°
3
Hist. Avg.
27°
10°
4
Hist. Avg.
27°
10°
5
Hist. Avg.
27°
10°
6
Hist. Avg.
28°
11°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Jefferson
Jefferson's January 2027 forecast shows daily high temperatures ranging from 15° to 39°, with overnight lows between -1° and 24°. The average high for January is 28° 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 Jefferson. See also: February | March | April.
