S
M
T
W
T
F
S
28
32°
17°
29
35°
16°
30
39°
17°
31
44°
19°
1
44°
32°
2
54°
37°
3
51°
43°
4
48°
42°
5
48°
34°
6
50°
37°
7
43°
31°
8
32°
24°
9
36°
23°
10
39°
22°
11
40°
20°
12
42°
23°
13
45°
24°
14
46°
24°
15
37°
21°
16
36°
19°
17
35°
17°
18
27°
22°
19
25°
23°
20
27°
22°
21
31°
20°
22
26°
23°
23
25°
22°
24
30°
20°
25
37°
16°
26
42°
11°
27
47°
19°
28
40°
25°
29
46°
29°
30
44°
27°
31
50°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Twin Falls
Twin Falls's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. 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 Twin Falls. See also: February | March | April.
