S
M
T
W
T
F
S
27
29°
13°
28
29°
13°
29
24°
12°
30
26°
9°
31
26°
5°
1
19°
6°
2
17°
8°
3
21°
10°
4
26°
10°
5
27°
2°
6
24°
2°
7
14°
6°
8
19°
3°
9
25°
-1°
10
18°
7°
11
18°
8°
12
21°
10°
13
24°
10°
14
25°
8°
15
26°
10°
16
24°
-2°
17
32°
12°
18
23°
-2°
19
20°
-9°
20
Hist. Avg.
19°
0°
21
Hist. Avg.
20°
0°
22
Hist. Avg.
20°
0°
23
Hist. Avg.
20°
0°
24
Hist. Avg.
20°
0°
25
Hist. Avg.
20°
0°
26
Hist. Avg.
20°
0°
27
Hist. Avg.
20°
0°
28
Hist. Avg.
21°
1°
29
Hist. Avg.
21°
1°
30
Hist. Avg.
21°
1°
31
Hist. Avg.
21°
1°
1
Hist. Avg.
22°
1°
2
Hist. Avg.
22°
1°
3
Hist. Avg.
22°
2°
4
Hist. Avg.
22°
2°
5
Hist. Avg.
22°
2°
6
Hist. Avg.
23°
2°
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 14° to 32°, with overnight lows between -9° and 13°. The average high for January is 23° with an average low of 6°. 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.
