S
M
T
W
T
F
S
27
36°
19°
28
30°
22°
29
29°
25°
30
37°
25°
31
37°
28°
1
39°
29°
2
41°
24°
3
42°
19°
4
36°
16°
5
28°
12°
6
23°
14°
7
23°
22°
8
33°
17°
9
32°
13°
10
25°
9°
11
27°
5°
12
24°
8°
13
19°
4°
14
22°
4°
15
19°
7°
16
18°
12°
17
21°
9°
18
22°
7°
19
25°
3°
20
25°
7°
21
18°
17°
22
33°
20°
23
35°
11°
24
35°
9°
25
24°
10°
26
30°
15°
27
31°
8°
28
28°
23°
29
Hist. Avg.
30°
14°
30
Hist. Avg.
30°
15°
31
Hist. Avg.
30°
15°
1
Hist. Avg.
30°
15°
2
Hist. Avg.
30°
15°
3
Hist. Avg.
30°
15°
4
Hist. Avg.
30°
15°
5
Hist. Avg.
30°
15°
6
Hist. Avg.
30°
15°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Johnson City
Johnson City's January 2027 forecast shows daily high temperatures ranging from 18° to 42°, with overnight lows between 3° and 29°. The average high for January is 29° with an average low of 14°. 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 Johnson City. See also: February | March | April.
