S
M
T
W
T
F
S
27
42°
20°
28
38°
15°
29
37°
15°
30
36°
7°
31
32°
5°
1
27°
12°
2
30°
19°
3
34°
17°
4
40°
19°
5
39°
9°
6
36°
6°
7
28°
5°
8
27°
11°
9
30°
13°
10
33°
6°
11
37°
3°
12
30°
6°
13
26°
4°
14
28°
6°
15
28°
8°
16
33°
5°
17
28°
6°
18
26°
5°
19
26°
11°
20
39°
19°
21
39°
19°
22
37°
15°
23
36°
12°
24
35°
13°
25
34°
17°
26
35°
14°
27
37°
10°
28
35°
16°
29
35°
20°
30
37°
15°
31
27°
14°
1
30°
9°
2
Hist. Avg.
39°
15°
3
Hist. Avg.
39°
15°
4
Hist. Avg.
39°
15°
5
Hist. Avg.
39°
15°
6
Hist. Avg.
40°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Sumner
Sumner's January 2027 forecast shows daily high temperatures ranging from 26° to 42°, with overnight lows between 3° and 20°. The average high for January is 33° 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 Sumner. See also: February | March | April.
