S
M
T
W
T
F
S
27
47°
35°
28
51°
35°
29
51°
33°
30
52°
29°
31
50°
24°
1
47°
22°
2
36°
23°
3
38°
24°
4
42°
24°
5
44°
23°
6
37°
22°
7
39°
20°
8
34°
28°
9
38°
25°
10
39°
21°
11
34°
20°
12
36°
21°
13
38°
22°
14
41°
25°
15
44°
28°
16
45°
27°
17
Hist. Avg.
40°
23°
18
Hist. Avg.
40°
23°
19
Hist. Avg.
40°
23°
20
Hist. Avg.
40°
23°
21
Hist. Avg.
40°
23°
22
Hist. Avg.
40°
23°
23
Hist. Avg.
40°
23°
24
Hist. Avg.
40°
23°
25
Hist. Avg.
41°
23°
26
Hist. Avg.
41°
24°
27
Hist. Avg.
41°
24°
28
Hist. Avg.
41°
24°
29
Hist. Avg.
41°
24°
30
Hist. Avg.
42°
24°
31
Hist. Avg.
42°
24°
1
Hist. Avg.
42°
24°
2
Hist. Avg.
42°
24°
3
Hist. Avg.
42°
25°
4
Hist. Avg.
43°
25°
5
Hist. Avg.
43°
25°
6
Hist. Avg.
43°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in St. Charles
St. Charles's January 2027 forecast shows daily high temperatures ranging from 34° to 52°, with overnight lows between 20° and 35°. The average high for January is 42° with an average low of 25°. 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 St. Charles. See also: February | March | April.
