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