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