S
M
T
W
T
F
S
27
41°
29°
28
40°
32°
29
42°
29°
30
42°
34°
31
43°
40°
1
48°
35°
2
48°
33°
3
44°
31°
4
42°
30°
5
41°
29°
6
40°
28°
7
41°
31°
8
42°
32°
9
43°
30°
10
43°
31°
11
44°
32°
12
43°
33°
13
44°
31°
14
44°
32°
15
45°
34°
16
45°
34°
17
46°
35°
18
45°
35°
19
46°
37°
20
46°
37°
21
47°
36°
22
45°
41°
23
47°
38°
24
48°
39°
25
46°
36°
26
47°
37°
27
45°
38°
28
44°
39°
29
46°
40°
30
46°
31°
31
Hist. Avg.
47°
34°
1
Hist. Avg.
47°
34°
2
Hist. Avg.
47°
34°
3
Hist. Avg.
47°
34°
4
Hist. Avg.
48°
34°
5
Hist. Avg.
48°
34°
6
Hist. Avg.
48°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Sumner
Sumner's January 2027 forecast shows daily high temperatures ranging from 40° to 48°, with overnight lows between 28° and 41°. The average high for January is 44° with an average low of 34°. 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.
