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